The informcation calculated from Amazon's $10$K report, the Breakeven Point in Total Sales Dollars for in $2023,2022,$ and $2021$ are$529446\mathrm{.}71$ million, $498763\mathrm{.}67$ million, and $439129\mathrm{.}57$ million respectively. Please

evaluate and explain trends in the breakeven point for the last three years.