Zap is a retailer that specialises in electrical goods. It is a division of a large retail company. The following data relate to the most recent year of operations: Profit $6,000,000 Sales Revenue $75,000,000 Average invested capital $30,000,000 Required: 1. Calculate Zaps return on sales, investment turnover and return on investment. 2. Use the two component ratios to demonstrate two ways in which the manager of Zap could improve ROI, increasing it to 25%. 3. Assume that the residual company has a minimum required rate of return of 11 %. Calculate the residual income for Zap