The accountant for Soybean Products gathered the following information from the accounting records for the year ended December 31,2017 : Cash collections from customers $520,000 Cash payments to suppliers for inventory 350,000 Cash payments to employees 62,000 Cash payments for insurance 17,000 Increase in inventory 8,700 Decrease in salary payable 1,500 Increase in accounts receivable 42,800 Increase in accounts payable * 31,600 Decrease in prepaid insurance 2,000 Relates solely to the purchase of inventory Using the information provided, calculate the following: a. Sales b. Cost of goods sold c. Salary expense d. Insurance expense