Im posting this question for second time because they solve it wrong . Please don't copy the answer from previous try

Gilmark Company has 13,000 obsolete lamps carried in inventory at a cost of $14.00 each. They can be sold as they are for $4.80 each. They can be reworked however, at a total cost of $55,900 and sold for $9.50 each Requirement Determine whether it is worthwhile to rework these lamps. First determine the formula to calculate the net return under each alternative, then calculate the net return under each alternative. (Complete all input cells. Enter a "O" for amounts with a zero balance.) Net return Sell as is Sell after rework The answers should be In yellow boxes. ONLY, first top boxes that has blue arrows on It has drop list. you have to choose from this drop list. The optlons In drop list for both boxes are (Additlonal cost per unlt, Inventory cost per unlt, Sales prlce per unlt )....Thank you