To-Complete Performance Index (TCPI)

 When to use

TCPI = (BAC – EV)/(BAC – AC) or

TCPI = (BAC – EV)/(EAC – AC) ?
 

TCPI = (BAC – EV)/(BAC – AC)is used when you are progressing at budgeted rate(BAC) taht means your original BAC is still valid.

TCPI = (BAC – EV)/(EAC – AC) is used when you have a new budget which is EAC that means your planned BAC is no longer valid and you forecasted a new budget EAC(Estimate at completion)