Tristan Industries, Inc, makes heavy duty shock absorbers designed for off-road vehicles. The company's ABC costing system has four cost pools, which are listed below with their activity measures and activity rates: The company just completed a single order from Trail Blazers Company for 2,400 shock absorbers The order was produced in four batches. Each shock absorber required 0.3 direct labor-hours. The selling price was $141.90 per unit, the direct materials cost was $109 per unit, and the direct labor cost was $1420 per unit. This was Trail Blazer's only order during the year. Required: Calculate the customer margin on sales to Trail Blazers for the year