Quantity Discount : 24% to 32% off 5+ @ 24% : 1210.85 + 217.95 (18%) = 1428.80 10+ @ 28% : 1147.12 + 206.48 (18%) = 1353.60 15+ @ 32% : 1083.39 + 195.01 (18%) = 1278.40