Solution:
The discretionary revenues of the work week must be estimated first before the 30th day of each operation
= Budgeted revenues * plan completion till the date
=25,000 *100%
=$ 25000
= Budgeted revenues * plan completion till the date
=150,000 *83.33%
=$ 125000
= Budgeted revenues * plan completion till the date
=50,000 *0%
=$ 0
BRWs of the project
=25000+12500+0
=150,000
The budgetary revenue from the work carried out is measured now before the 30th day of every operation.
BRWPA = Budgeted revenues * Actual completion till the date
=25,000 *90%
=$ 22500
BRWPB = Budgeted revenues * Actual completion till the date
=150,000 *50%
=$ 75000
BRWPC = Budgeted revenues * Actual completion till the date
=50,000 *0%
=$ 0
BRWP of the project
=22500+7500
=97500
Now we need to calculate the schedule variance as under
= BRWP-BRWS
=97500-150,000
=-52500
The deviation is so pessimistic here so that we can assume that the project's success is way behind the cost efficiency index estimate.
Calculation of the scot's expense efficiency index
=Budgeted Revenue of the work Performed / Actual revenue
=97500 /175,000
=0.56
Here, the performance level is lower than 1 (0.56) so the results are higher than expected Estimation of the performance index of the schedule
=Budgeted Revenue of the work Performed / budgeted revenue of the work scheduled
=97500 /150,000
=0.65
Here it is less than 1 (0.65) so it is behind the schedule