%CV and %SV

What is the exact formula for %CV and %SV?

Cost variance (CV): shows how the actual cost of the project is comparing to the value of work completed; CV = EV - AC; CV= $82,500 - $95,000 = (-$12,500), negative cost variance shows us that our sample project is running over budget.

Schedule variance (SV): shows how well the actual work performed compares to the planned schedule; SV = EV - PV; SV = $82,500 - $88,000 = (-$5,500), negative schedule variance shows that the amount of work actually completed is running behind what was scheduled to be completed.

%CV =(CV/EV)*100

%SV =(SV/PV)*100

Variance is always a difference (substraction), hence there is no direct formula for CV%.

Index is always a ratio. (CPI,CPI)

Still, %CV can be calculated using normal maths:

CV%= [(Current CV - Earlier CV)/Current CV]*100

Same for SV