How profitable are the transactor, revolver, and dormant Reserve customers for JPMC$?$ How long do Reserve customers have to remain with the brand, and how much do they have to spend $($on average$)$ for JPMC to recover its customer acquisition costs? $(5$ points$)$ Use the following information:

Transactors and Revolvers:

Both spend $$16,000$ per year

Credit balance carried: $$0$ for transactors, $50\%$ of spend for revolvers

Interest rate average: $21\%$

Renewal fee for card at $$450$ per year

Dormants

Spend only enough to earn the sign$-$on bonus $($$$4,000$ per year$)$

Credit balance carried: $$0$

Do not renew card

Interchange Fee is $1\mathrm{.}5\%$ of Spend