The Earned Value Management Macros

Performance Indices

Table 11.12 shows the formulas for Cost, Schedule, and To-Complete Performance Indices. WR is Work Remaining and is given by: $\mr{WR = BAC - EV}$. The section Cost Estimates gives different expressions for the EAC (Estimate at Completion).

Table 11.12: Performance Index Formulas

Acronym

Formula

CPI

$\frac{\mr{EV}}{\mr{AC}}$

SPI

$\frac{\mr{EV}}{\mr{PV}}$

$\mr{TCPI_\mr {BAC}}$

$\frac{\mr{WR}}{\mr{BAC} - \mr{AC}}$

$\mr{TCPI_\mr {EAC}}$

$\frac{\mr{WR}}{\mr{EAC} - \mr{AC}}$