Starcups Coffee Company is launching a new sustainability initiative that would reward customers for purchasing a reusable cup. During the cup promotion, customers would pay an extra $$1\mathrm{.}00$ for the reusable cup and would receive a $25$ percent discount each time they return with the cup to buy a cup of coffee.

Each week Starcups serves $40,000$ customers who purchase an average of $2\mathrm{.}5$ cups of coffee per week $(100,000$ cups total$).$ Starcups$$s contribution margin income statement for a typical week is shown below: