The Besnier Company had $$390$ million of sales last year, and it had $$75$ million of fixed assets that were being operated at $80\%$ of capacity. In millions, how large could sales have been if the company had operated at full capacity?

Select the correct answer.

a$.$ $$487\mathrm{.}5$

b$.$ $$501\mathrm{.}3$

c$.$ $$473\mathrm{.}7$

d$.$ $$466\mathrm{.}8$

e$.$ $$480\mathrm{.}6$