2 points Save Ans Smith Company sells its products at $640 per unit, net 30. The firm's gross margin ratio is 40 percent. The firm has estimated the following operating costs: per visit Activity Cost Driver and Rate Sales calls $ 470 Order processing $ 135 per order Deliveries $ 85 per order + $0.50 per mile Sales returns $ 95 per return and $3 restocking per unit returned Smith Company has gathered the following data pertaining to activities it performed for two of its customers: 570 XBT NINTO Number of orders 17 2 Number of parts per order 570 2,070 Sales returns: Number of returns 4 10 Number of units returned (per return) 40 50 Number of sales calls 13 11 Miles per delivery 10 20 Shipping terms FOB Factory FOB, Destination Mvhat is Smith's total customer batch-level cost applicable to Ninto