Vertical Analysis of Income Statement Revenue and expense data for Rogan Technologies Co. for two recent years are as follows: Current Year Previous Year Sales Cost of goods sold Selling expenses Administrative expenses Income tax expense a. Prepare an income statement in comparative form, stating each item for both years as a percent of sales. If required, round percentages to one decimal place. Enter all amounts as positive numbers $383,000 218,310 65,110 72,770 11,490 $337,000 171,870 67,400 57,290 16,850