Coupon geting incorrect total

I have read and tried your solution:
https://awodev.com/forum/awocoupon/help-section/calculation-error-virtuemart
but with no success

---------- issue 1 ----------------

Subtotal: €12.90
Total: €12.90
Tax Total: €2.24

With a 15% coupon with the following settings -
Coupon (Product) Percent 15.00 Unlimited Overall All [ Customers ] Exclude 131 [ Products ]

I get -
Subtotal: €12.90
Coupon Discount: - €1.94
Total: €10.55
Tax Total: €1.90

The Total should be -
€12.90 - €1.94 = €10.96
---------- issue 2 ----------------
Same as before:

Subtotal: €12.90
Total: €12.90
Tax Total: €1.12

With a 50% coupon with the following settings -
Coupon (Manufacturer) Percent 50.00 1 per Customer Specific All [ Customers ] Exclude 4 [ Manufacturers ]

I get -
Subtotal: €12.90
Coupon Discount: - €6.45
Total: €5.10
Tax Total: €1.12

The Total should be -
€12.90 - €6.45 = €6.45



Any ideas ?

What version of virtuemart is this? What screen is this where the total is wrong? Is this the shopping cart page, before choosing shipping? Or is this the confirmation page after everything is chosen. If its the confirmation page, what are the shipping charges, discount charges, etc. What is the tax? It looks like it is discount before tax, so have you reviewed this blog:
https://awodev.com/blog/virtuemart-coupon-error-discount-before-tax?

Thank you Seyi.

I've implemented that fix before but for some reason it appears to have revered? Maybe one of the updates I've applied in the last year over write one of the files.

Anyway, thank you.