Activity-Based Costing: Selling and Administrative Expenses Jungle Junior Company manufactures and sells outdoor play equipment. Jungle Junior uses activity-based costing to determine the cost of the sales order processing and the customer return activity. The sales order processing activity has an activity rate of $81 per sales order, and the customer return activity has an activity rate of $20 per return. Jungle Junior sold 10,000 swing sets, which consisted of 4,000 orders and 400 returns. a. Determine the total sales order processing and customer return activity cost for swing sets. $fill in the blank 1 b. Determine the per-unit sales order processing and customer return activity cost for swing sets. If required, round your answer to the nearest cent. $fill in the blank 2 per unit