EVM cost question

What is the BEST way to make an accurate forecasting of ETC?




  1. EAC - AC



  2. BAC - EV



  3. Manual Forecasting of cost of remaining work.



  4. (BAC - EV)/CPI

 A

It's Scordo question, and answer is:


Manual forecasting of costs for remaining work is generally the best means of generating an accurate forecast. [Project Cost Management]

 my answer was based on 

following concepts

EAC also may be estimated based on manual/bottom up/or non  manual.

in place of manual , bottom up summation is the best in accuracy.

refer p 184- manual bottom up summation ,  EAC and ETC and AC