Barbara and Michael just ordered their dream granite countertop from Crane's Inc., which had to purchase the slab, cut it, treat it, and install it. Throughout the process, Barbara and Michael worked with a Crane's salesperson to make sure they chose the right kitchen layout, edging. and other finishes. Here are the costs that Crane's incurred last month to complete 10 kitchen projects like Barbara and Michael's. (a) How much of the above cost reflects total product cost for the counter togs