Fofana Corporation, a merchandising company, reported the following results for July: $ Number of units sold Selling price per unit Unit cost of goods sold Variable selling expense per unit Total fixed selling expense Variable administrative expense per unit Total fixed administrative expense $ 6,800 610 420 64 126,300 32 208,200 $ Cost of goods sold is a variable cost in this company. Required: a. Prepare a traditional format income statement for July. b. Prepare a contribution format income statement for July