Please help.

Compute, Disaggregate and Interpret ROE and ROA Selected balance sheet and income statement information from Staples, Inc., follows ($ millions). Sales Interest expense Net income Total Assets Stockholders' Equity 2014 2014 2014 2014 2013 2014 2013 $22,492 $49 $135 $10,314 $11,175 $5,313 $6,141 a. Compute the 2014 return on equity (ROE), return on assets (ROA), and return on financial leverage (ROFL). Round answers to one decimal place (i.e., 0.2568 = 25.7%). Do not round until your final answer. ROE ROA ROFL 10.3 % x 4.18 % X 3.07% x b. Disaggregate ROA into profit margin (PM) and asset turnover (AT). Round answers to one decimal place (i.e., 0.2568 = 25.7%). Do not round until your final answer. PM 0% x AT 0x