Formulas to memorize for PMP.
EV = %Complete*BAC
AC = %Spent*BAC
CV = EV–AC (>0 Good)
SV = EV–PV (>0 Good)
CPI = EV/AC (>1 Good)
SPI = EV/PV (>1 Good)
EAC = AC+Bottom up ETC – Best however team has to stop working and spend time
EAC = AC+BAC–EV – Remaining work to be performed at budgeted rate
EAC = BAC/Cumulative CPI – Remaining work to be performed at present CPI
EAC = AC+(BAC–EV)/(Cumulative CPI*Cumulative SPI) – Remaining work to be performed at present rate involving both SPI and CPI
ETC = EAC–AC or Re-estimate
VAC = BAC–EAC
TCPI = (BAC-EV)/(BAC-AC ) or (EAC–AC) – EAC will be used once it is determined BAC is no longer achievable, less then 1 is good
PV = FV/(1+r)n
Communication Channels = n(n-1)/2
EMV = P*I
PERT EAD = (O+4M+P)/6
PERT Project Duration = Sum of PERT EADs
SD = (P-O)/6
Variance of Activity = [SD]2 = [(P-O)/6]2
SD of Project = Square Root of Var1 + var2 + ……
Range of activity duration = EAD +/- SD
Total Float/Slack = LS-ES or LF-EF – zero on critical path
BCR/IRR/NPV – Bigger is better
Mean – Average
Median – Center number/value or average of center values
Mode – The most frequent number
Contract Incentives Savings = Target Cost – Actual Cost
Bonus = Savings x Percentage
Contract Cost = Bonus + Fees
Total Cost = Actual Cost + Contract Cost
PTA = (Ceiling Price – Target Price)/Buyer’s Share ratio +Target Cost
Terms Used
Planned Value (PV)
Actual Cost (AC)
Earned Value (EV)
Budget At Completion (BAC)
Cost Variance (CV)
Schedule Variance (SV)
Cost Performance Index (CPI)
Schedule Performance Index (SPI)
Estimate at Completion (EAC)
Estimate to Complete (ETC)
Variance At Completion (VAC)
Probability (P)
Impact (I)
Expected Monetary Value (EMV)
Expected Activity Duration (EAD)
Standard Deviation (SD)
Late Start, Early Start, Late Finish, Early Finish (LS, ES, LF, EF)
Point of Total Assumption (PTA)
To Complete Performance Index [TCPI]
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PMP formulas