Quantity Discount : 28.75% to 36.25% off 5+ @ 28.75% : 254.47 + 30.54 (12%) = 285.01 10+ @ 32.50% : 241.07 + 28.93 (12%) = 270 15+ @ 36.25% : 227.68 + 27.32 (12%) = 255