I need some help with this question

Grant Industries, a manufacturer of electronic parts. has recently received an invitation to bid on a special order for 25,000 units of one of its most popular products. Grant currently manufactures 50.000 units of this product in its Lovelancl, Ohio, plant. The plant is operating at 50% capacity. There will be no marketing costs on the special order. The sales manager of Grant wants to set the bid at $14 because she is sure that Grant will get the business at that price. Others on the executive committee of the rm object, saying that Grant would lose money on the special order at that price. Units 53,003 Manufacturing costs: Direct materials $288,000 Direct labor 258,000 Factory overhead 358,000 Total manufacturing costs $353.6\"? Unit cost $ 15 3'5 , BBB is 380.998 315.9% 453,999 $1, 125 , 998 $ 15 [ Required 2. What is the relevant cost per unit? What do you think the minimum short-term bid price per unit should be? What would be the impact on short-term operating income if the order is accepted at the price recommended by the sales manager? 4. What would the total opportunity cost be if by accepting the special order the company lost sales of 5,800 units to its regular customers? Assume the preceding facts plus a normal selling price of $30 per unit