In 2006 Procter & Gamble had net sales of $68222 and cost of product sold was 33125. Assume that Proctor and Gamble had a 10% increase in sales in 2007 and there was no change in cost except for increases aqssociated with the higher volume of sales. Compute the predicted 2007 operating income for Proctor and Gamble nd its percentage increase. Explain why the percentage increase in income. differsw from the percentage increases in sales.