Express the following comparative income statements in common-size percents. Using the common-size percents, which item is most responsible for the decline in net income?

Note: Round your percentage answers to 1 decimal place.

[tex]\[
\begin{tabular}{|l|r|r|r|r|}
\hline
\multicolumn{5}{|c|}{GOMEZ CORPORATION} \\
\hline
\multicolumn{5}{|c|}{Comparative Income Statements} \\
\hline
\multicolumn{5}{|c|}{For Years Ended December 31} \\
\hline
& Current Year \$ & Current Year $\%$ & Prior Year \$ & Prior Year $\%$ \\
\hline
Sales & \$740,000 & & \$5,625,000 & \\
\hline
Cost of goods sold & \$560,300 & & \$290,800 & \\
\hline
Gross profit & \$179,700 & & \$334,200 & \\
\hline
Operating expenses & \$128,200 & & \$218,500 & \\
\hline
Net income & \$51,500 & & \$115,700 & \\
\hline
\end{tabular}
\][/tex]

Using the common-size percents, which item is most responsible for the decline in net income?



Answer :

To express the comparative income statements in common-size percents, we convert each item in the statements into a percentage of the total sales for each year. This allows for an easier comparison between years.

### Current Year Common-Size Percentages

1. Sales:

[tex]\[ \text{Sales \% (Current Year)} = \left(\frac{\$740,000}{\$740,000}\right) \times 100 = 100.0\% \][/tex]

2. Cost of Goods Sold (COGS):

[tex]\[ \text{COGS \% (Current Year)} = \left(\frac{\$560,300}{\$740,000}\right) \times 100 = 75.7\% \][/tex]

3. Gross Profit:

[tex]\[ \text{Gross Profit \% (Current Year)} = \left(\frac{\$179,700}{\$740,000}\right) \times 100 = 24.3\% \][/tex]

4. Operating Expenses:

[tex]\[ \text{Operating Expenses \% (Current Year)} = \left(\frac{\$128,200}{\$740,000}\right) \times 100 = 17.3\% \][/tex]

5. Net Income:

[tex]\[ \text{Net Income \% (Current Year)} = \left(\frac{\$51,500}{\$740,000}\right) \times 100 = 7.0\% \][/tex]

### Prior Year Common-Size Percentages

1. Sales:

[tex]\[ \text{Sales \% (Prior Year)} = \left(\frac{\$625,000}{\$625,000}\right) \times 100 = 100.0\% \][/tex]

2. Cost of Goods Sold (COGS):

[tex]\[ \text{COGS \% (Prior Year)} = \left(\frac{\$290,800}{\$625,000}\right) \times 100 = 46.5\% \][/tex]

3. Gross Profit:

[tex]\[ \text{Gross Profit \% (Prior Year)} = \left(\frac{\$334,200}{\$625,000}\right) \times 100 = 53.5\% \][/tex]

4. Operating Expenses:

[tex]\[ \text{Operating Expenses \% (Prior Year)} = \left(\frac{\$218,500}{\$625,000}\right) \times 100 = 35.0\% \][/tex]

5. Net Income:

[tex]\[ \text{Net Income \% (Prior Year)} = \left(\frac{\$115,700}{\$625,000}\right) \times 100 = 18.5\% \][/tex]

### Comparative Income Statements in Common-Size Percents

\begin{tabular}{|l|r|r|}
\hline
\multicolumn{1}{|c|}{\textbf{}} & \multicolumn{1}{c|}{\textbf{Current Year \[tex]$}} & \multicolumn{1}{c|}{\textbf{Prior Year \$[/tex]}} \\
\hline
Sales & 100.0\% & 100.0\% \\
\hline
Cost of Goods Sold (COGS) & 75.7\% & 46.5\% \\
\hline
Gross Profit & 24.3\% & 53.5\% \\
\hline
Operating Expenses & 17.3\% & 35.0\% \\
\hline
Net Income & 7.0\% & 18.5\% \\
\hline
\end{tabular}

### Reason for Decline in Net Income
To determine which item is most responsible for the decline in net income, we compare the common-size percentages of each item from the current year to the prior year:

1. Sales: 100.0\% (Current Year) - 100.0\% (Prior Year) = 0.0\%
2. COGS: 75.7\% (Current Year) - 46.5\% (Prior Year) = 29.2\%
3. Gross Profit: 24.3\% (Current Year) - 53.5\% (Prior Year) = -29.2\%
4. Operating Expenses: 17.3\% (Current Year) - 35.0\% (Prior Year) = -17.6\%
5. Net Income: 7.0\% (Current Year) - 18.5\% (Prior Year) = -11.6\%

The most significant changes are observed in the "Cost of Goods Sold" (COGS) and "Gross Profit" categories.

- The Cost of Goods Sold increased by 29.2 percentage points.
- The Gross Profit decreased by 29.2 percentage points.

Therefore, the item most responsible for the decline in net income is the increase in the Cost of Goods Sold (COGS).