Discount for multiple copies of Mplus ordered at the same time. Following is the discount schedule:
10% discount for 2 copies
15% discount for 3 copies
20% discount for 4 copies
25% discount for 5-9 copies
30% discount for 10-19 copies
35% discount for 20-29 copies
40% discount for 30-39 copies
45% discount for 40-49 copies
50% discount for 50 or more copies