If you will not be offering quantity discounts, turn this feature off to reduce the number of queries used to calculate and display product information and speed up your zen cart site. This step by step tutorial will show you how to turn off quantity discounts in zen cart.
Log into your zen cart admin and go to Configuration -> Attribute Settings.
Click on “Enable Qty Price Discount”, select “false”, and click on the “update” button.
If you need help customizing your zen cart web site, or would like a great custom design, please contact us for a quote.