Inc. manufactures large workbenches for industrial use. Recently, Sales have been declining because of aggressive pricing by competitors. workbench sells for $850 compared to competitors' price of $810 for a comparable workbench. Cost data based on sales of 13,000 workbenches: a. Calculate WB's current profit per unit. b. If WB reduces the price to the market price of $810 per workbench, what is WB's necessary target cost per unit to achieve the current profit margin percentage