Quantity Discount : 24% to 32% off 5+ @ 24% : 6762.71 + 1217.29 (18%) = 7980 10+ @ 28% : 6406.78 + 1153.22 (18%) = 7560 15+ @ 32% : 6050.84 + 1089.15 (18%) = 7139.99