The following information is available for a company's cost of sales over the last five months. Cost of sales $31,000 $37,000 $49,000 $61,000 2.400 Month Units sold January 400 February 800 March 1,600 April Using the high-low method, the estimated total fixed cost is: $25,000 $30,000 5100.000 $50,000 $13,692 The following information is available for a company's cost of sales over the last five months. Cost of sales $31,000 $37,000 $49,000 $61,000 2.400 Month Units sold January 400 February 800 March 1,600 April Using the high-low method, the estimated total fixed cost is: $25,000 $30,000 5100.000 $50,000 $13,692