apter 18 Le arning Objective 5 S18-12 Calculating unit cost per service Mars and Tyler provides hair-cutting services in the local commuincurred the business cut the hair of 190 clients, carned $4,800 in revenues, lowing operating costs ty. In February, the and i fol- Hair Supplies Expense Wages Expense Utilities Expense Depreciation Expense-Equipment s 950 548 190 60 What was the cost of service to provide one haircut