# Formula Memorization Trick CV=EV-AC SV=EV-PV CPI=EV/AC SPI=EV/PV EAC=BAC/CPI ETC=EAC-AC VAC=BAC-EAC When memorizing the formulas I have found it best to.

## Presentation on theme: "Formula Memorization Trick CV=EV-AC SV=EV-PV CPI=EV/AC SPI=EV/PV EAC=BAC/CPI ETC=EAC-AC VAC=BAC-EAC When memorizing the formulas I have found it best to."— Presentation transcript:

Formula Memorization Trick CV=EV-AC SV=EV-PV CPI=EV/AC SPI=EV/PV EAC=BAC/CPI ETC=EAC-AC VAC=BAC-EAC When memorizing the formulas I have found it best to look for patterns. When I see the correct pattern I know the formula is correct. AC = ACWP PV = BCWS EV = BCWP

Formula Memorization Trick Ok lets build this. First is to see the pattern of 2 subtractions, 3 divides, 2 subtractions CV=EV-AC SV=EV-PV CPI=EV/AC SPI=EV/PV EAC=BAC/CPI ETC=EAC-AC VAC=BAC-EAC

Formula Memorization Trick Next see the pattern of Variance and Index. Cost, Schedule and Cost, Schedule. CV=EV-AC SV=EV-PV CPI=EV/AC SPI=EV/PV EAC=BAC/CPI ETC=EAC-AC VAC=BAC-EAC

Formula Memorization Trick Next see the pattern of Earned Value (EV). This used to be BCWP. CV=EV-AC SV=EV-PV CPI=EV/AC SPI=EV/PV EAC=BAC/CPI ETC=EAC-AC VAC=BAC-EAC

Formula Memorization Trick Next see the pattern of Actual Cost (AC) and Planned Value (PV) and how they alternate. Skip a line and its AC again. CV=EV-AC SV=EV-PV CPI=EV/AC SPI=EV/PV EAC=BAC/CPI ETC=EAC-AC VAC=BAC-EAC

Formula Memorization Trick Next see the pattern of Estimated at Completion (EAC). As well as Budget at Completion (BAC) CV=EV-AC SV=EV-PV CPI=EV/AC SPI=EV/PV EAC=BAC/CPI ETC=EAC-AC VAC=BAC-EAC

Formula Memorization Trick Not much left. Notice that CPI is divisor of EAC so find CPI skip a line and place it at the end of EAC formula. CV=EV-AC SV=EV-PV CPI=EV/AC SPI=EV/PV EAC=BAC/CPI ETC=EAC-AC VAC=BAC-EAC ETC and VAC don’t really match to anything, you just have to know where they go.

Formula Memorization Trick This may look confusing but it worked great for me and I have had others tell me it worked for them as well. CV=EV-AC SV=EV-PV CPI=EV/AC SPI=EV/PV EAC=BAC/CPI ETC=EAC-AC VAC=BAC-EAC

Other Formulas to Know Communication Channels: N(N-1)/2 Pert Mean: (Pessimistic + 4*Most Likely + Optimistic) / 6 Standard Deviation: (Pessimistic – Optimistic) / 6 Variance: ((Pessimistic – Optimistic) / 6) squared Present Value or PV: Future Value / (1+ rate of return) to the power of n. Where n = periods of time.

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