CRELoaded Coupon Tax Calculation Issues

This project requires in depth knowledge of PHP and MySQL along with the understanding of CRE-loaded eCommerce. Our store is not calculating tax properly with coupons during checkout. Tax should only be applied to the discounted total and not the original price. (see below) Example: We have test item set at $29.69 and we have created a coupon for 30% off the order total. The tax rate for our location is 6% Here is what our cart is currently doing: Discount Coupons:h8: -$8.95 Sub-Total: $29.69 Sales Tax: $1.78 Total: $22.56 (Its taxing the original total before the coupon... it shouldn't do this! It should take the coupon away from the total and then tax the discounted amount.) It should look like this Sub-Total $29.69 Discount Coupons:h8: -$8.91 Sub-Total After Coupons: $20.78 Sales Tax: $1.24 Total: $22.02 We are running CRELoaded 6.2 B2B Max Budget $75.00 Less is better!