A company manufactures three products using the same production process. The costs incurred up to the split-off point are $201,900. These costs are allocated to the products on the basis of their sales value at the split-off point. The number of units produced, the selling prices per unit of the three products at the split-off point and after further processing, and the additional processing costs are is follows. (b1) Determine the incremental profit (loss) of each product(s). (Enter negative amounts using either a negative sign preceding the number es 45 or parentheses es. (45)) (b2) Which product(s) should be processed further and which should be sold at the split-off point