BE7.5 Determine whether to sell or process further. (LO 4), AP Pine Street Inc. makes unfinished bookcases that it sells for $62. Production costs are $36 variable and $10 fixed. Because it has unused capacity, Pine Street is considering finishing the bookcases and selling them for $70. Variable finishing costs are expected to be $6 per unit with no increase in fixed costs. Prepare Street should sell unfinished or finished bookcases analysis on a per unit basis showing whether Pine O an