farah corporation has provided the following production and total cost data for two levels of monthly production volume. the company produces a single product. production volume......2000 units............3000 units direct materials........$146,200..............$219,300 direct labor..............$37,200..............$55,800 Manufacturing overhead.....$146,600......$158,100 The best estimate of the total cost to manufacture 2300 units is closer to what is the answer and please show work. Thanks!