Analyzing Earned Value

earned value (EV): the budgeted amount for the work actually completed on the schedule activity or work breakdown structure (WBS) component or task during a given time period
budget at completion (BAC): total cumulative planned value at completion
cumulative actual cost (AC^c): actual cost to date
cumulative earned value (EV^c): the budgeted amount for the work actually completed to date; same as budgeted cost of work performed (BCWP)
cumulative cost performance index (CPI^c): cumulative cost efficiency
estimate at completion (EAC): the expected total cost of a schedule activity, work breakdown structure (WBS) component, or the project when the defined scope of work will be completed
estimate to complete (ETC): the expected cost needed to complete all the remaining work for a schedule activity, work breakdown structure component, or the project



EV = percent of project completed x BAC
CPI^c = EV^c/AC^c
ETC = (BAC - EV^c)/CPI^c
EAC = AC^c + ETC