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CAPM Practice: Determine how to document project controls of predictive, plan-based projects

Question 27 of 85 in Determine how to document project controls of predictive, plan-based projects

A project is approaching completion and the sponsor wants an accurate forecast of total project cost. The project has CPI = 0.94, BAC = $800,000, EV = $720,000, AC = $766,000. What is the best EAC estimate and what does it tell the sponsor?
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Correct answer: EAC = BAC/CPI = $800,000/0.94 = $851,064 — forecasting a $51,064 overrun if current efficiency continues

Explanation

EAC = BAC/CPI = $800,000/0.94 ≈ $851,064 uses current CPI to project total cost, assuming current efficiency continues. Since the project has $80,000 of work remaining (BAC - EV = $800K - $720K), and has been spending at 94 cents of value per dollar spent, completing the remaining work at the same efficiency forecasts total cost of $851K. This gives the sponsor a performance-based forecast rather than optimistically assuming remaining work will be done at 100% efficiency.

**Why not A:** Stating that EAC equals the original BAC of $800,000 ignores the project's actual cost performance. With a CPI of 0.94, the project is consistently spending more than planned per unit of work, making an on-budget completion unrealistic.

**Why not B:** EAC = AC + (BAC - EV) = $846,000 assumes the remaining work will be completed at the originally budgeted efficiency (CPI = 1.0). This is an optimistic assumption that disregards the established pattern of cost overrun reflected in the current CPI of 0.94.

**Why not C:** Setting EAC equal to actual cost alone ($766,000) ignores the remaining $80,000 of work that still needs to be completed. Actual cost to date does not represent the total forecast for the project since there is outstanding work remaining.

Key Concept

This question covers Determine how to document project controls of predictive, plan-based projects under Determine how to document project controls of predictive, plan-based projects (Predictive, Plan-Based Methodologies).

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