An incomplete flexible budget for overhead is given below for MHD company that owns and operates a large automatic carwash facility in Ghala.

MHD Company Flexible Budget
Overhead costs	Cost formula (per car)	Activity (cars)
		8,000	9,000	10,000
Variable overheadcosts
Cleaning supplies	?	?	4,500	?
Electricity	?	?	5,400	?
Maintenance	?	?	1,800	?
Total variable overheadcost	?	?	?	?
Fixed overhead costs
Operator wages		?	10,000	?
Depreciation		?	20,000	?
Rent		?	8,000	?
Total Fixed overhead costs		?	?	?
Total overhead costs		?	?	?

Required:

a) Fill in the missing data in the flexible budget.

b) Prepare a flexible budget performance report for both the variable and fixed overhead costs for August, assuming that the company static budget is 8,300 cars.

Actual Costs Incurred for 8,300 Cars in the month of August is as follows:

Variable overhead costs		Fixed overhead costs:
Cleaning supplies	.$ 4,350	Operator wages	. $ 10,060
Electricity	. $ 4,865	Depreciation	$ 20,200
Maintenance	$ 1,600	Rent	$ 8,000