A: Assume the customer requests $205$ units in the special order and offers $$47$ per unit. Since the customer came directly to the special order, assuming it has enough idle capacity for the order?

Waterway Industries would be by $ by accepting this order.

Answer I got: better off at $$3690$

Assume instead that the customer requests $105$ units in the special order and offers $$43$ per unit. Waterway management still believes there will be enough capacity to take on the special order. This time, however, variable selling costs will be incurred because the customer is working through a sales representative. How much better or worse off will Waterway Industries be if it accepts this special order?

Answer: Waterway management would be better off by $$1365$

I am in need of answer C:

$($c$)$ Assume instead the customer requests $165$ units and both a discounted price of $$44$ per unit and a customized version of the fan. In order to make the customized version, Waterway will need to purchase a special piece of equipment for $$3,115,$ but it will not incur any variable selling costs for this order. How much better or worse off will the company be if it uses its available capacity and accepts this special order?

Answer: I know they're worse off, but my calculations are not correct. Help!