Quantity Discount : 42.99% to 48.99% off 5+ @ 42.99% : 79.71 + 14.35 (18%) = 94.06 10+ @ 46% : 75.51 + 13.59 (18%) = 89.10 15+ @ 48.99% : 71.32 + 12.84 (18%) = 84.16