Calculator Diamond Boot Factory normally sells their specialty boots for $35 a pair. An offer to buy 55 boots for $27 per pair was made by an organization hosting a national event in Norfolk. The variable cost per boot is $14 and special stitching will add another st per pair to the cost. Determine the differential income or loss per pair of boots from selling to the organization. Enter the amount as a positive number Differential per pair of boots from accepting the special order is