Wilke Realty separates its activities into two operating divisions: Rentals and Sales. In March 2013, the firm spent $ 32,500 for general company promotions (as opposed to advertisements for specific properties). The corporate controller has decided to allocate general promotion costs to the two operating divisions. He is considering whether to base his allocations on the (1) expected increase in divisional revenue from the promotions or (2) expected increase in divisional profit from the promotions (before allocated promotion costs). General promotions had the following effects on the two divisions:

a. Allocate the total promotion cost to the two divisions using change in revenue.
b. Allocate the total promotion cost to the two divisions using change in profit before joint cost allocation.
c. Which of the two approaches is more appropriate?Explain.

Rentals Sales Increase in divisional revenue Increase in profit (before allocated promotion costs) 770,000 $105,000 85,500 104,500