Tired (Banded) Pricing

Hello,

We've requirements for certain products (not all) where list prices are determined by tire (band). e.g.

e.g. If Qty is between 1-5 list price should be 50, if its 6-10 it should be 40 etc...

  

Qty	List price
1-5	50
6-10	40
11-20	35
21-40	20

We calculate extended price by multiplying list price * Qty but for tired price product we shouldn't do that. We're thinking to add an attribute at product level to remove multiplication with Quantity if its tired product.

what we need to do is to do price override for banded product depending on quantity. e.g. if Qty is between 1 to 5, do a price override using pricing engine.