Question Three (10 Marks) The following information provided by Golden Windows Inc on Dec.31 2018. Sales Operating expenses Average Operating assets Required Rate of Return Instructions: 1,940,000 980,000 3,950,000 21% 1. Calculate Margin, Turnover and Return on Investment. 2. Calculate Residual Income. 3. Silver Windows Inc. planning to increase Average Operating Assets $500,000 during 2019. The estimations of managerial accountant that this investment will increase Net Sales by 60% and Operating Expenses 20%. Do you recommend this investment? Show your calculations