Inspection Materials receiving /PO eTextbook and Media (b) Calculate the activity-based unit cost of the smartphone case. (Round answer to 2 decimol ploces, es. 15.25) Activity-based unit cost Vaughn Industries manufactures several products including a basic case for a popular smartphone. The company is considering adopting an activity-based costing approach for setting its budget. The company's production activities, budgeted activity costs, and cost drivers for the coming year are as follows. The budgeted data for smartphone case production are as follows