Thx for feedback first of all.
I agree to your formula in principle, but when you look at the example following to your posted formula, it is necessary also to calculate the TCPI based on EAC:
TCPI = (BAC-EV) / (EAC-AC)
To be able to calculate this formula now, it is necessary to calculate actual EAC first. Therefore 2 possible way would work:
1) EAC = AC + BAC - EV
= 400 + 500 - 300
= 600
2) EAC = AC + ETC
= 400 + 400
= 800
In this example you have 400 USD, 200 USD per day, 2 days left. So, described on the paper it is calculated as following:
EAC = 700 -> (EV + 400) , EV = 300 (3 days are already over, 100 USD per day)
As you can see here, in the example ones is using EAC = EV + ETC instead of EAC = AC + ETC
Do you know why this has been chosen?
thx, gerald