I have the following scenario
Buy 10 - 24 items get 10% discount Buy 25 - 49 items get 15% discount Buy 50 items or more get 20% discount
How to I get Magento to always take the discount from the original subtotal price. Currently Magento works okay for the first 10% discount but once it goes into the 2nd bracket it applies the extra 5% discount to the altered 10% price and not the original subtotal price so the customer does not get the full 15% off if buying 25 - 49 items.