BI: Compute New Standard Product Costs a: D.C. does not currently track actual cost information, but Kay has estimated some additional production data provided in Table 5. Using the approach(es) you recommended in Part A and the estimated data provided in Tables 1-5 and the Case, use Excel to compute estimated total cost, profit margin, and margin percentage for each of the four jobs identified in Table 5, Panel A. b: Compare your costs and profitability per bar to Kay's estimates in Table 4. What is the potential financial impact of using your method instead of Kay's