Campbell Chemical Company makes a variety of cosmetic products, one of which is a skin cream designed to reduce the signs of aging. Campbell produces a relatively small amount $(19,000$ units$)$ of the cream and is considering the purchase of the product from an outside supplier for $$4\mathrm{.}90$ each. If Campbell purchases from the outside supplier, it would continue to sell and distribute the cream under its own brand name. Campbell's accountant constructed the following profitability analysis:

$\backslash$table$[[$Revenue units $$$$12\mathrm{.}00,$$$228,000$