Calculate the Gross Profit rate for the latest 2 years. What trend do you see? Whats the % change? What do you think is causing the difference, if any?

Please correct me and answer the question

\#1. GrOSS Profit Rate GPR= Gross Profti Net Sales Year Ending Jan 28, 2023 (\$ in millions) Gross Profit= Total revenue - Cost of Sales =109,12082,229 =26,891 GPR =26,891/109,120 Gross Profit Rate in 2023=0.24 or 24.6% Year Ending Jan 29, 2022 (\$ in millions) Gross Profit = Total revenue - Cost of sales =106,00574,963 =31,042 GPR =31,042/106,005 Gross Profit Rate in 2022=0.29 or 29.3% Changes in \%= 24.629.3=4.7% The Gross Profit rate has decreased by 4.7%. This decreased could be attributed to an increase in the cost of sales, which might be due to factors like higher production costs, increased raw materials prices, or lower economies of scale