I don't know how to do this. Please help :(

Crane Ranch inc. has been manufacturing its own finials for its curtain rods. The company is currently operating at 100% of capacity. and variable manufacturing overhead is charged to production at the rate of 61% of direct labor cost. The direct materiais and direct labor cost per unit to make a pair of finials are $4 and $5, respectlvely. Normal production is 33,300 curtain rods per year. A supplier offers to make a pair of finials at a price of $12.90 per unit. If Crane Ranch accepts the supplier's offer, all variable manufacturing costs will be eliminated, but the $49,200 of foced manufacturing overhead currently being charged to the finials will have to be absorbed by other products. (a) Prepare the incremental analysis for the decision to make or buy the finlals. (Enter negatlve amounts using elther a negathe sign precedins the number es - 45 ar parentheses es. (45) Should Crane Ranch buy the finials? , Crane Ranch should the finials. (c) Would your answer be different in (b) if the productive capacity released ty not making the finials could be ised to produce income of 535.100