Sandhill Inc. manufactures snowsuits. Sandhill is considering purchasing a new sewing machine at a cost of $$2\mathrm{.}45$ million. Its existing machine was purchased $5$ years ago at a price of $$1,8$ million; six months ago, Sandhill spent $$55,000$ to keep it operational. The existing sewing machine can be sold today for $$243,175.$ The new sewing machine would require a one$-$time, $$85,000$ training cost. Operating costs would decrease by the following amounts for years $1$ to $7$ :

$\backslash$table$[[$Year$,1,$$$390,000$