[Verse 1]
When projects need their price tags set
Four methods help you place your bet
Analogous pulls from history's shelf
While parametric builds formulas itself
Bottom-up climbs from details small
Three-point weighs optimistic, most likely, and worst of all
[Chorus]
O plus four M plus P, divide by six
PERT formula for estimates that stick
PV planned, EV earned, AC spent
SV equals EV minus PV for schedule bent
CV equals EV minus AC for cost control
CPI and SPI keep you on your roll
[Verse 2]
Baseline locked, funding flows in waves
EVM metrics guard what your project craves
Schedule index shows your timing fate
Cost index reveals if you're running late
When CPI drops below the line of one
Your budget bleeds faster than work gets done
[Chorus]
O plus four M plus P, divide by six
PERT formula for estimates that stick
PV planned, EV earned, AC spent
SV equals EV minus PV for schedule bent
CV equals EV minus AC for cost control
CPI and SPI keep you on your roll
[Bridge]
EAC predicts your final bill
BAC divided by CPI fills the typical drill
Atypical adds AC to what remains
While complex math considers both cost and time strains
ETC shows what's left to spend
VAC reveals if budget bends
TCPI demands performance tight
To finish projects within sight
[Verse 3]
Resources level, smooth the peaks away
RBS breaks down who works each day
Make or buy decisions weigh the cost
Choose wisely or your gains are lost
Leveling shifts while smoothing bends
Both techniques help your timeline mend
[Outro]
Budget mastery lives in formulas learned
When variances strike and baselines burn
EVM guards your project's heart
Smart resource choices set you apart