"Difference" columns. McDade Company Comparative Income Statement For the Years Ended December 31, 2012 and 20Y1 Difference Difference - Amount - Percent 20Y2 20Y1 Sales Cost of merchandise sold $480,394 $427,000 $ % Gross profit 340,200 270,000 $140,194 $157,000 $ % % Selling expenses Administrative expenses $47,700 $36,000 $ 28,380 23,000 % % Total operating expenses $76,080 $59,000 $ % Income from operations $64,114 $98,000 $ % Other revenue 2,200 1,800 % Income before income tax expense $66,314 $99,800 $ % Income tax expense 18,600 29,900 % Net income $47,714 $69,900 $ % 2. Net income has from 20Y1 to 20Y2. Sales have cost of merchandise sold has causing the gross profit to however, the