please answer question B

Shamrock Firm is considering whether to outsource the manufacture of subcomponent JXY. The accounting department provides the following cost information for manufacturing 10,800 units of subcomponent JXY per month. ` Fixed overhead includes $5,300 supervisor's salary. International Firm agrees to supply Shamrock with 10,800 units per month for a total cost of $137,400. If subcomponent JXY is outsourced, Shamrock will be able to increase the production and sales of its final product by 1,050 units per month; the product is sold for $115 per unit and its average variable costs per unit are $75. The supervisor's salary will be eliminated if subcomponent JXY is outsourced. (a) Prepare an incremental analysis for subcomponent JXY. (If an amount reduces the incremental costs then enter with a negative sign preceding the number e.g. 15,000 or parenthesis, e.g. (15,000). While alternate approaches are possible, irrelevant fixed costs should be included in both options when solving this problem.) Based on your analysis, what decision should management make? Management should decide to JXY as it would cost an additional \$ if they were to eTextbook and Media