Scenario 14-4 The information below applies to a competitive firm that sells its output for $40 per unit. • When the firm produces and sells 150 units of output, its average total cost is $24.50. • When the firm produces and sells 151 units of output, its average total cost is $24.55. Refer to Scenario 14-4. Suppose the firm is producing 150 units of output and its fixed cost is $975. Then its average variable cost amounts to