The Betashoe Company manufactures shoes. It has two divisions: the Sole Division and the Assembly Division. The Sole Division manufactures soles for the Assembly Division, which completes the manufacturing of the shoes and sells the completed product to retailers. The Sole Division 'sells' pairs of soles to the Assembly Division. The market price for the Assembly Division to purchase a pair of soles is $20. (Ignore changes in inventory.) The fixed costs for the Sole Division are assumed to be the same over the range of 40 000-100 000 units is 2$. The fixed costs for the Assembly Division are assumed to be $7 per pair of shoes at 100 000 units.

Costs per pair of soles are:

Direct materials $4

Direct labour $3

Variable overhead $2

Division admin costs $1

Assembly's costs per completed pair of shoes are:

Direct materials $6

Direct labour $2

Variable overhead $1

Division fixed costs $7

Assume the transfer price for a pair of soles is 180% of total costs of the Sole Division and 40 000 pairs of soles are produced and transferred to the Assembly Division. The Sole Division's operating profit is: