Getchman Marketing, Inc., a merchandising company, reported sales of $592,500 and cost of goods sold of $305,000 for April. The company's total variable selling expense was $37,500; its total fixed selling expense was $16,000; its total variable administrative expense was $35,000; and its total fixed administrative expense was $38,900. The cost of goods sold in this company is a variable cost. The gross margin for April is