Restate the following income statement for a retailer in contribution format.

Sales revenue ($100) per unit) $87,000

Less cost of goods sold ($56 per unit) $48,720

Gross margin #38,280

Less operation costs:

Commissions expenses ($7 per unit) $6,090

Salaries expense $7,800

Advertising expense $6,000

Shipping expense ($2 per unit) 1,740. 21,630

Operating income $16,650