Mango Systems believes that demand for its pet e$-$mouse follows a linear demand equation:

Quantity $=38,888-897*$ Price

Mango's variable cost to produce one pet e$-$mouse is $$23\mathrm{.}50.$ Find the maximum total contribution margin $($margin per unit times quantity sold$)$ that Mango Systems can possibly achieve on its pet e$-$mouse. $($Rounding: penny.$)$