consider a project consisting of four work packages. The table below presents the summary of performance data. Answer the following questions based the data presented in the table

1. Calculate the cost and schedule variances for each work activity.
2. Which work activity is the most over budget and behind schedule? Support your answer with figures.
3. Determine estimate at completion (EAC) for work activity A?
4. Determine estimate to complete (ETC) for work activity C.
5. Assume that work activity A was originally scheduled to be finalized within 10 months. Determine estimated completion time (ECT).

Work activity	Planned Value (PV)	Actual Cost (AC)	Percentage completed
A	6,000,000 Birr	5,200,000 Birr	75%
B	5,800,000	6,000,000	100%
C	7,200,000	7,200,000	90%
D	5,200,000	5,200,000	100%