The Following Items Were Taken from the Financial Statements of Kramer

The following items were taken from the financial statements of Kramer Manufacturing, Inc., over a three-year period: $\begin{array}{lrrr}\text { Item }&2015&2014&2013\\\text { Net Sales } & \$ 226,000 & \$ 212,000 & \$ 200,000 \\\text { Cost of Goods Sold } & 150,000 & 140,000 & 125,000\\\text { Gross Profit }&\$76,000&\$72,000&\$75,000\end{array}$ Instructions
Using horizontal analysis and 2013 as the base year, compute the trend percentages for net sales, cost of goods sold, and gross profit. Explain whether the trends are favorable or unfavorable for each item.