Answer: Cost of Goods sold
Step-by-step explanation:
Common size analysis refers to making all entries in the income statement, a percentage of sales for that year.
Current Year Prior Year
Sales 100% 100%
Cost of Goods sold 75.7% 46.5%
Gross Profit 24.3% 53.5%
Operating expenses 17.3% 35%
Net Income 7.0% 18.5%
Looking at the percentages above, one can see that the COGS increased the most from the previous year by going from 46.5% to 75.7% representing an increase of 29.2%.
This had the most impact on Net income as it substantially reduced Gross profit.