The following are the actual results for Bentler Associates for the most recent period:

Sales volume	73,040	units
Sales revenue	$ 949,520
Variable costs
Manufacturing	234,080
Marketing and administrative	39,100
Contribution margin	$ 676,340
Fixed costs
Manufacturing	426,720
Marketing and administrative	104,000
Operating profit	$ 145,620

The company planned to produce and sell 83,000 units for $12.50 each. At that volume, the contribution margin would have been $736,000. Variable marketing and administrative costs are budgeted at 5 percent of sales revenue. Manufacturing fixed costs are estimated at $5 per unit at the budgeted volume of 83,000 units. Management notes, We budget an operating profit of $2.50 per unit at the budgeted volume.

Required: a. Construct the master budget for the period. b. Prepare a profit variance analysis.