Pmp Calculations

Front 1

No. of Communication Channels

Back 1

n (n-1)/2

n = number of members in the team

Hint 1

n should include the project manager

e.g. if the no. of team members increase from 4 to 5, the increase in communication channels:
5(5-1)/2 – 4(4-1)/2 = 4

Front 2

Schedule Performance Index (SPI)

Back 2

SPI = EV/PV

EV = Earned Value
PV = Planned Value

Hint 2

< 1 behind schedule
= 1 on schedule
> 1 ahead of schedule

Front 3

Cost Performance Index (CPI)

Back 3

CPI = EV/AC

EV = Earned Value
AC = Actual Cost

Hint 3

< 1 Over budget
= 1 On budget
> 1 Under budget

sometimes the term ‘cumulative CPI’ would be shown, which actually is the CPI up to that moment

Front 4

Schedule Variance (SV)

Back 4

SV = EV – PV

EV = Earned Value
PV = Planned Value

Hint 4

< 0 Behind schedule
= 0 On schedule
> 0 Ahead of schedule

Front 5

Cost Variance (CV)

Back 5

CV = EV – AC

EV = Earned Value
AC = Actual Cost

Hint 5

< 0 Over budget
= 0 On budget
> 0 Within budget

Front 6

Estimate at Completion (EAC) if original is flawed

Back 6

EAC = AC + New ETC

AC = Actual Cost
New ETC = New Estimate to Completion

Hint 6

if the original estimate is based on wrong data/assumptions or circumstances have changed

Front 7

Estimate at Completion (EAC) if BAC remains the same

Back 7

EAC = AC + BAC – EV

AC = Actual Cost
BAC = Budget at completion
EV = Earned Value

Hint 7

the variance is caused by a one-time event and is not likely to happen again

Front 8

Estimate at Completion (EAC) if CPI remains the same

Back 8

EAC = BAC/CPI

BAC = Budget at completion
CPI = Cost performance index

Hint 8

if the CPI would remain the same till end of project, i.e. the original estimation is not accurate

Front 9

Estimate at Completion (EAC) if substandard performance continues

Back 9

EAC = AC + (BAC -EV)/(CPI*SPI)

AC = Actual Cost
BAC = Budget at completion
EV = Earned Value
CPI = Cost Performance Index
SPI = Schedule Performance Index

Hint 9

use when the question gives all the values (AC, BAC, EV, CPI and SPI), otherwise, this formula is not likely to be used

Front 10

To-Complete Performance Index (TCPI)

Back 10

TCPI = (BAC – EV)/
(BAC – AC)

BAC = Budget at completion
EV = Earned value
AC = Actual Cost

TCPI = Remaining Work
/Remaining Funds

BAC = Budget at completion
EV = Earned value
CPI = Cost performance index

Hint 10

< 1 Under budget
= 1 On budget
> 1 Over budget

Front 11

Estimate to Completion

Back 11

ETC = EAC -AC

EAC = Estimate at Completion
AC = Actual Cost

Front 12

Variance at Completion

Back 12

VAC = BAC – EAC

BAC = Budget at completion
EAC = Estimate at Completion

Hint 12

< 0 Under budget
= 0 On budget
> 0 Over budget

Front 13

PERT Estimation

Back 13

(O + 4M + P)/6

O= Optimistic estimate
M= Most Likely estimate
P= Pessimistic estimate

Front 14

Standard Deviation

Back 14

(P – O)/6

O= Optimistic estimate
P= Pessimistic estimate

Hint 14

this is a rough estimate for the standard deviation

Front 15

Float/Slack

Back 15

LS – ES

LS = Late start
ES = Early start

LF – EF

LF = Late finish
EF = Early finish

Hint 15

= 0 On critical path
< 0 Behind schedule