Quantity Discount : 24% to 32% off 5+ @ 24% : 2597.53 + 467.56 (18%) = 3065.09 10+ @ 28% : 2460.82 + 442.95 (18%) = 2903.77 15+ @ 32% : 2324.10 + 418.34 (18%) = 2742.44