6. Below is an extract from the accounts of DGF Retail Company for year ending 31 March 2015. Revenue Cost of Sales Operating profit Average inventory Current assets (as at 31/3/15) Current liabilities (as at 31/3/15) Accounts receivable Long term liabilities Capital employed Em 350 120 30 420 82 102 40 65 120 28 Calculate: a. Gross profit margin. [2] b. Operating profit margin. [2] c. Inventory turnover days. [2] d. Current ratio. e. Gearing ratio. [2]