Exercise 10-7 Pina Express reports the following costs and expenses in June 2017 for its delivery service. Indirect materials Depreciation on delivery equipment Dispatcher's salary Property taxes on office building CEO's salary Gas and oil for delivery trucks $6,500 12,100 5,680 960 12,300 3,300 Drivers' salaries Advertising Delivery equipment repairs Office supplies Office utilities Repairs on office equipment $17,000 4,800 350 710 1,100 200 Determine the total amount of (a) delivery service (product) costs and (b) period costs. (a) Delivery service (product) costs (b) Period costs $