Understand a cost overrun
Check the measurement basis, diagnose the variance and explain a forecast.
Start with the first step, or open the resource you need. This is a shortlist for this task.
Check what the measures represent
Planned, earned and actual values must use the same scope and status date.
Read the progress guideCompare forecast assumptions
Continuing current efficiency and estimating the remaining work can produce different answers.
Try earned-value forecastingInspect the cost-efficiency ratio
Know what CPI can establish before applying it to the remaining work.
Understand CPI