Problem $11\mathrm{.}6$

A machine shop in a factory is working to its full capacity and earning a contribution of $$50$ per hour. The management receives a high priority order which it wants to execute immediately. Material will be supplied by the customer and the special order will take a minimum of $10$ hours. Wages payable will be $15$ per hour and variable overhead will be $150\%$ of wages. If the customer is prepared to pay $800$ for the order, should the order be accepted.