Clulow Corporation recently changed the selling price of one of its products. Data concerning sales for comparable periods before and after the price change are presented below. Selling Price Unit Sales $34.00 7,800 $31.00 10,010 The product's variable cost is $10.50 per unit. The product's profit-maximizing price according to the formula in the text is closest to:

$15.31

$16.67

$20.79

$13.86