Incorrect calcluations of discount

Ive created a discount voucher for 7%
the products are 220.22
tax is 20% = 40.34 ????

Discount taken off for 7% is 18.50 ?????

what has happened is it has added 220.22 + 20% = 264.26 -7%

what SHOULD happen is 220.22 - 7% THEN add 20% tax.

Anyone know how to solve this?

you want to use discount before tax option. Caution: there will likely be problems with it and you would have to update your code to get it working correctly. I wrote a blog on it a while ago for virtuemart 1.1.4, but some of it has been fixed:
https://awodev.com/blog/virtuemart-coupon-error-discount-before-tax

Thats already switched on so the calculations are all incorrect.

Its still taking discount after tax then recalculating the tax amount.

no sure then. what version of virtuemart and awocoupon are you using?

Virtuemart 1.1.8

AWO Coupon 1.1.10

Ive noticed some of what u ask to be commented out put has been commented out, but not all in this version.

just did some testing, I get the same results whether using AwoCoupon or Virtuemart coupon system. It obviously still has problems. At the very least, this solution was not implemented:
https://awodev.com/blog/virtuemart-coupon-error-discount-before-tax#solution2

Used your code and this is working fine.

SO for everyone else in 1.1.8 virtuemart you still need to implement the code fix.


Works great now many thanks


Ken