Simple modification needed for Zen Cart. Installation is using multiple Table Rates to calculate shipping option based on Order Total (price) with Quantity Discount modification installed. Current shipping rate calculation does NOT consider Quantity Discount. Shipping Table Rate should be based on discounted cart sub-total before tax. Currently uses cart Order Total before discount.
So calculation would look something like this:
Order Sub-Total 43.45
Quantity Discount [url removed, login to view]
Discounted Sub-Total 32.89
Shipping Rate (a) 4.00
Shipping Rate (b) 8.00
Shipping Rate (a) and (b) should be calculated based on Discounted Sub-Total of 32.89. This would be a change in behavior as currently Shipping Rate (a) and (b) are being calculated on 43.45 instead.