10 minutes estimated reading time.

Key takeaways:

• Earned Value Analysis combines scope, schedule and cost data to show how a project is performing.
• Three core measures form the basis of EVA: Planned Value, Earned Value and Actual Cost.
• Schedule Variance and Schedule Performance Index help identify whether project progress is ahead of or behind the plan.
• Cost Variance and Cost Performance Index show whether completed work is costing more or less than expected.
• EVA can identify performance problems before they become larger cost or schedule issues.
• Forecasting measures can estimate the likely final project cost based on current performance.
• EVA works best when a project has a clear scope, realistic budget, reliable schedule and accurate progress data.
• Regular EVA reviews help project managers make better decisions using measurable performance information.

Introduction

A project can look busy without performing well. Your team may complete tasks every day, suppliers may send invoices and project meetings may run as planned. Yet these activities do not necessarily tell you whether the project is delivering enough work for the time and money being spent.

Earned Value Analysis, commonly called EVA, helps answer that question. EVA gives project managers a structured way to assess cost and schedule performance by comparing planned work, completed work and actual spending.

For beginners, terms such as PV, EV, AC, CPI and SPI can initially look complicated. Yet the basic idea is simple. You need to answer three questions: How much work should have been completed? How much work has actually been completed? How much did that completed work cost?

Once you can answer those questions, EVA becomes much easier to understand.

What Is Earned Value Analysis?

Earned Value Analysis is a project performance measurement method that compares planned progress with actual progress and actual cost. It connects three major parts of project management: scope, schedule and cost.

Traditional project reporting often looks at these areas separately. For example, a project manager might report that a project has spent $80,000 from a $200,000 budget. That figure alone does not reveal whether the project is performing well.

Suppose the project has spent 40 per cent of its budget but completed only 25 per cent of the planned work. That tells a very different story. EVA makes this difference visible by connecting spending with the budgeted value of completed work.

Why Earned Value Analysis Matters

Projects rarely follow their original plans perfectly. Tasks can take longer than expected, supplier costs can change, resources may become unavailable and some activities may fall behind schedule.

EVA provides a consistent way to measure these differences. For example, imagine a project has a $100,000 budget. Halfway through its planned schedule, the team has spent $50,000. At first glance, the project may appear to be performing well because half the budget has been spent at the halfway point.

Now suppose only $35,000 worth of planned work has actually been completed. The project has a performance problem that simple budget tracking would not reveal.

This is where EVA becomes useful. Instead of asking only how much money has been spent, you can determine how much planned value has been delivered for that spending.

The Three Core Measures of EVA

Before calculating performance indicators, you need to understand Planned Value, Earned Value and Actual Cost.

EVA Measure	Abbreviation	What It Tells You
Planned Value	PV	How much planned work should be complete
Earned Value	EV	How much budgeted work has actually been completed
Actual Cost	AC	How much the completed work has actually cost

Planned Value

Planned Value represents the budgeted value of work that should have been completed by a particular date.

Suppose a six-month project has a total budget of $120,000. According to the approved schedule, 50 per cent of the project should be complete after three months.

PV = $120,000 × 50% = $60,000

Therefore, the project should have delivered $60,000 worth of planned work by the end of month three.

Earned Value

Earned Value measures the budgeted value of work actually completed. Importantly, EV is not the amount of money spent.

Suppose the same project should be 50 per cent complete, but the team has actually completed only 40 per cent.

EV = $120,000 × 40% = $48,000

The project has therefore earned $48,000 of its planned value.

Actual Cost

Actual Cost is the amount actually spent completing the work. It may include labour, contractor fees, materials, equipment, software and supplier costs.

Suppose the project has spent $55,000 by the end of month three.

The EVA figures are now:

Measure	Amount
Planned Value	$60,000
Earned Value	$48,000
Actual Cost	$55,000

The project should have completed $60,000 worth of work but has completed only $48,000. At the same time, it has spent $55,000 to produce that $48,000 of budgeted value.

Understanding Schedule Variance

Schedule Variance, or SV, compares Earned Value with Planned Value.

SV = EV − PV

Using the example:

SV = $48,000 − $60,000 = −$12,000

A negative result means less work has been completed than planned. A positive result means more work has been completed than planned, while zero means completed work matches planned progress.

Therefore, the −$12,000 Schedule Variance indicates that the project is behind its planned progress.

Understanding Cost Variance

Cost Variance, or CV, compares Earned Value with Actual Cost.

CV = EV − AC

Using the same example:

CV = $48,000 − $55,000 = −$7,000

The project has spent $7,000 more than the budgeted value of the work completed. A positive CV represents favourable cost performance, while a negative CV indicates that completed work has cost more than planned.

The project manager can then investigate possible causes such as higher labour costs, rework, inaccurate estimates or increased supplier costs.

Schedule Performance Index

The Schedule Performance Index, or SPI, measures completed value against planned value.

SPI = EV ÷ PV

Using the example:

SPI = $48,000 ÷ $60,000 = 0.80

An SPI greater than 1.00 indicates progress ahead of plan. An SPI of 1.00 indicates progress matching the plan. An SPI below 1.00 indicates progress behind plan.

Therefore, an SPI of 0.80 shows that the project has completed less work than expected at this stage.

Cost Performance Index

The Cost Performance Index, or CPI, compares Earned Value with Actual Cost.

CPI = EV ÷ AC

Using the example:

CPI = $48,000 ÷ $55,000 = 0.87

A CPI greater than 1.00 indicates favourable cost performance. A CPI of 1.00 means cost performance matches the budget, while a CPI below 1.00 indicates unfavourable cost performance.

In this example, the CPI of 0.87 shows that the project is receiving about $0.87 of budgeted value for every $1.00 spent.

EVA Formula Cheat Sheet

Metric	Formula	Purpose
Schedule Variance	SV = EV − PV	Measures progress variance
Cost Variance	CV = EV − AC	Measures cost variance
Schedule Performance Index	SPI = EV ÷ PV	Measures schedule performance
Cost Performance Index	CPI = EV ÷ AC	Measures cost performance
Estimate at Completion	EAC = BAC ÷ CPI	Forecasts final project cost under a common assumption
Estimate to Complete	ETC = EAC − AC	Estimates remaining project cost
Variance at Completion	VAC = BAC − EAC	Estimates final budget variance

BAC means Budget at Completion, which is the project’s total approved budget.

Practical Earned Value Analysis Example

Consider a website redevelopment project with an approved budget of $200,000 and a planned duration of eight months. At the end of month four, the plan says 50 per cent of the work should be complete. In reality, 40 per cent of the budgeted work has been completed and actual spending has reached $95,000.

PV = $200,000 × 50% = $100,000

EV = $200,000 × 40% = $80,000

AC = $95,000

The Schedule Variance is:

SV = $80,000 − $100,000 = −$20,000

The Cost Variance is:

CV = $80,000 − $95,000 = −$15,000

The Schedule Performance Index is:

SPI = $80,000 ÷ $100,000 = 0.80

The Cost Performance Index is:

CPI = $80,000 ÷ $95,000 = 0.84

Metric	Result	Interpretation
PV	$100,000	Planned work value
EV	$80,000	Completed work value
AC	$95,000	Actual spending
SV	−$20,000	Behind planned progress
CV	−$15,000	Unfavourable cost performance
SPI	0.80	Less work completed than planned
CPI	0.84	Completed work is costing more than budgeted

These figures tell the project manager where further investigation is needed. Technical tasks may have taken longer than expected, requirements may have changed or rework may have increased labour costs.

EVA identifies the performance gap. Project analysis identifies its cause.

Using EVA to Forecast Project Costs

EVA can also help forecast final project costs. One common measure is Estimate at Completion, or EAC.

A basic formula is:

EAC = BAC ÷ CPI

Using the website project:

EAC = $200,000 ÷ 0.84 = approximately $238,095

If the same cost performance continues, this method suggests the project could finish at approximately $238,095.

You can then calculate Estimate to Complete:

ETC = EAC − AC

ETC = $238,095 − $95,000 = $143,095

Finally, Variance at Completion compares the approved budget with the forecast final cost:

VAC = BAC − EAC

VAC = $200,000 − $238,095 = −$38,095

The negative VAC indicates a forecast budget overrun if the assumptions behind the forecast continue.

How EVA Reveals Project Performance During Delivery

EVA becomes more useful when you calculate it regularly. Depending on the project, teams may review performance weekly, fortnightly, monthly or at major milestones.

Regular measurement allows you to identify trends. For example, suppose CPI falls from 1.02 to 0.98, then 0.91 and finally 0.84 across four reporting periods. One poor result may represent a temporary issue. A continuing decline points towards a broader cost problem that requires investigation.

The same principle applies to SPI. If schedule performance continues to decline, project managers can examine delayed activities, resource shortages, dependencies, supplier performance or unrealistic estimates.

Common EVA Mistakes

One common mistake is treating money spent as project progress. Spending 60 per cent of a budget does not mean 60 per cent of the work has been completed. EVA separates Actual Cost from Earned Value for this reason.

Another mistake is relying on vague completion percentages. A task reported as “90 per cent complete” may remain at that level for weeks. Clear milestones and measurable deliverables provide stronger data.

Project teams should also avoid changing the baseline simply because performance falls behind. EVA measures performance against an approved plan, so uncontrolled baseline changes reduce the value of the comparison.

Finally, CPI and SPI should not be interpreted in isolation. Good cost performance may occur because planned work has not been completed. Reviewing both indicators gives you a clearer picture.

EVA Versus Basic Budget Tracking

Basic Budget Tracking	Earned Value Analysis
Shows how much money has been spent	Connects spending with completed work
Compares spending with total budget	Compares actual and planned performance
Can hide progress problems	Highlights cost and schedule gaps
Focuses mainly on financial data	Connects scope, schedule and cost
Mainly reports past spending	Can support project forecasting

Two projects could each spend $500,000 from a $1 million budget. Yet one might have completed $600,000 worth of planned work while the other has completed only $350,000. Basic spending figures look similar, but EVA reveals a major difference in performance.

How to Start Using EVA

Start by defining the project scope and breaking it into measurable work. Then assign budget values to the work and establish when each activity should occur.

At each reporting date, record Planned Value, Earned Value and Actual Cost. Next, calculate Schedule Variance, Cost Variance, SPI and CPI.

Then ask practical questions. Why did performance change? Is the issue temporary or ongoing? Which activities caused the variance? Does the forecast need to change? What action should the project team take?

The calculations provide evidence. The value of EVA comes from using that evidence to make better project decisions.

Conclusion

Earned Value Analysis provides a practical way to understand whether a project is delivering the expected work for the time and money invested. It starts with three numbers: Planned Value, Earned Value and Actual Cost.

From there, Schedule Variance, Cost Variance, SPI and CPI show whether the project is performing as planned. Forecasting measures such as EAC, ETC and VAC can then provide an indication of where project costs may be heading.

The calculations themselves are only part of the process. The more useful questions are what caused the variance, whether the trend is improving or declining and what action the project team should take next.

When used consistently, EVA turns project cost and schedule data into clear performance information. That gives project managers a stronger basis for monitoring progress, forecasting outcomes and making informed decisions throughout project delivery.

Frequently Asked Questions

1. What is Earned Value Analysis in simple terms?

Earned Value Analysis compares what you planned to complete, what you actually completed and how much you spent. It combines project cost and schedule information into consistent performance measures. This makes it easier to identify differences between the project plan and actual delivery.

2. What are the three main elements of EVA?

The three main elements are Planned Value, Earned Value and Actual Cost. Planned Value represents the budgeted value of work that should be complete, while Earned Value represents the budgeted value of work actually completed. Actual Cost shows how much money has been spent completing that work.

3. What does a CPI below 1 mean?

A CPI below 1 indicates that completed work is costing more than its budgeted value. For example, a CPI of 0.80 means the project is receiving $0.80 of budgeted value for every $1.00 spent. The project manager should investigate why costs are exceeding the value being produced.

4. What does an SPI below 1 mean?

An SPI below 1 indicates that the project has completed less work than planned by the measurement date. Project managers can investigate delayed tasks, resource availability, dependencies and supplier performance to identify the cause. Corrective action can then focus on the activities affecting progress.

5. Can beginners use Earned Value Analysis?

Yes. Beginners can start with Planned Value, Earned Value and Actual Cost before moving to variances, indexes and forecasts. A simple spreadsheet and a clear project baseline are often enough to practise EVA and understand how the calculations support project decisions.