Precise Machinery is analyzing a proposed project. The company expects to sell 2,100 units, give or take 5 percent. The expected variable cost per unit is $260 and the expected fixed costs are $589,000. Cost estimates are considered accurate within a plus or minus 4 percent range. The depreciation expense is $129,000. The sales price is estimated at $750 per unit, give or take 2 percent. What is the amount of the total costs per unit under the worst case scenario? A. $548.58 B. $577.45 C. $604.16 D. $638.23 E. $640.25