[Verse 1]
Project manager with a calculating mind
Earned Value's the compass when schedules unwind
Three letters dancing in the formula maze
EV is your anchor through uncertain days
PV shows the plan, what should be complete
AC tells the truth of money and receipt
[Chorus]
Schedule Variance equals EV minus PV
Cost Variance equals EV minus AC
Performance indices, divide don't subtract
SPI and CPI keep your project on track
EV over PV for schedule's health
EV over AC guards your wealth
[Verse 2]
When variance turns negative, alarms start to ring
Behind schedule whispers, over budget's sting
But indices reveal the deeper story told
Greater than one means you're striking gold
Less than one signals trouble ahead
Performance metrics paint the future red
[Chorus]
Schedule Variance equals EV minus PV
Cost Variance equals EV minus AC
Performance indices, divide don't subtract
SPI and CPI keep your project on track
EV over PV for schedule's health
EV over AC guards your wealth
[Bridge]
Estimate at Completion has three different faces
BAC divided by CPI in typical cases
Atypical adds AC plus BAC minus EV
Both indices multiply CPI and SPI
ETC equals EAC minus what you've spent
VAC shows final budget variance sent
[Verse 3]
TCPI reveals the mountain left to climb
BAC minus EV over BAC minus AC's time
To-Complete Performance tells you what you need
Future efficiency to help you succeed
Crystal ball mathematics for project control
Earned Value Management plays the starring role
[Outro]
When stakeholders question and budgets feel tight
These formulas guide you through management's night
Ten equations dancing in perfect formation
Earned Value delivers project salvation