Acronymes

Name	Formula
Cost Variance	CV = EV - AC (Positive = Under planned cost \| Neutral = On planned cost \| Negative = Over planned cost) more
Cost Performance Index	CPI = EV/AC EV = Earned Value AC = Actual Cost more
Estimate At Completion	1. BAC / CPI — if CPI remains the same BAC = Budget at completion CPI = Cost performance index 2. AC + ETC — Initial Estimates are flawed AC = Actual Cost New ETC = New Estimate to Completion 3. AC + BAC – EV — if BAC remains the same AC = Actual Cost BAC = Budget at completion EV = Earned Value more
Estimate To Completion	ETC = EAC -AC EAC = Estimate at Completion AC = Actual Cost more
Earned Value	EV = Actual % complete x BAC BAC = Budget At Completion more
Schedule Performance Index	SPI = EV/PV EV = Earned Value PV = Planned Value more
Schedule Variance	SV = EV – PV EV = Earned Value PV = Planned Value more
To-Complete Performance Index	TCPI = (BAC - EV)/(BAC - AC) BAC= Budget at completion EV = Earned Value AC = Actual Cost more
Total Float	Float = LF – EF (or LS – ES) EF= Early Finish LF= Late Finish ES= Early Start LS= Late Start more
Variance at Completion	VAC = BAC – EAC BAC = Budget at completion EAC = Estimate at Completion more
PERT	PERT = (P + 4M + O )/ 6 O= Optimistic estimate M= Most Likely estimate P= Pessimistic estimate more
Standard Deviation (SD)	SD = (P – O) / 6 O= Optimistic estimate P= Pessimistic estimate more
Free Float	Free Float = ES of the next activity - EF EF= Early Finish ES= Early Start more
Communication Channels	Communication Channels = n (n-1)/2 n = number of members in the team more