Diamond Boot Factory normally sells their specialty boots for $21 a pair. An offer to buy 70 boots for $13 per pair was made by an organization hosting a national event in Norfolk. The variable cost per boot is $8 and special stitching will add another $2 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. per pair of boots from accepting the special order is $ Differentia v income loss