Price reduction with quantity ordered

[SpartanKen]

I have been using ocart for almost a year and it has an option for different levels of discounts depending on the products purchased. it is set up as follows.

 

Price: $15.00

 

 

2 or more $14.75

3 or more $14.50

4 or more $14.25

5 or more $14.00

6 or more $13.75

7 or more $13.50

8 or more $13.30

9 or more $13.10

10 or more $12.90

11 or more $12.70

12 or more $12.50

13 or more $12.30

14 or more $12.15

15 or more $12.00

 

Does Prestashop offer a module or configure option for this? I have yet to get this working on mine. I like the look and layout of Presta and would like to utilize it for my store, but this is the only thing holding me back.