The Hardware Department of Zaphod Inc. had the following information gathered from their fiscal year end financial reports at December 31, 2019 Average Total Assets $1,169,500 Operating Income $233,900 Required Return 10% Sales $1,299,444 Do not enter dollar signs or commas in the input boxes. Round all answers to 2 decimal places. a) Calculate the segment margin percetnage for the Hardware Department. Profit Margin: 20 X % b) Calculate the return on investment for the Hardware Department. Return on Investment: 20 % c) Calculate the residual income for the Hardware Department. Residual Income: $233900 X