I am having a difficult time getting my calculations and formulas right can anyone help?

The following data relate to the operations of Shilow Company, a wholesale distributor of consumer goods: Current assets as of March 31 Cash $ 9,100 S 26,400 $49,200 $106,800 S 29,550 S 150,000 S 11.950 Accounts receivable Inventorv Building and equipment, net Accounts payable Capital stock Retained earnings a. The gross margin is 25% of sales. b. Actual and budgeted sales data March (actual) May June July $66,000 $82,000 $87,000 $112,000 $63,000