15.6 explain how activity based costing can be used to determine the total cost of ownership 15.15 explain how activity based approaches can be used to calculate customer profitability. E15.31 pavement pounders manufactures a range of designer walking shoes, which it produces to order for major department stores and chains of shoe stores. On 5 March the sales department at PP received an order from shoe chain WalkOn for 5000 of PP's well known Glitter Dazzler walkers. The sales department P15.41