Lancer Audio produces a high-end DVD player that sells for $1,250. Total operating expenses for the past 12 months are as follows: Units Produced And sold Cost August 125 $112,670 September 145 $121,990 October 150 $129,500 November 160 $131,500 December 165 $139,700 January 140 $117,400 February 145 $125,600 March 135 $115,400 April 130 $116,140 May 135 $119,220 June 145 $121,700 July 140 $119,050 Required: A. Use the high-low method to estimate fixed and variable costs. B. Based on these estimates, calculate the break-even level of sales in units. C. Calculate the margin of safety for the coming August assuming estimated sales of 160 units. D. Estimate total profit assuming production and sales of 160 units. E. Comment on the limitations of the high-low method in estimating costs for lancer Audio.