im using version 1.3.8a

This is what is happening:
Sub-Total: €289,00
Free shipping (Free Shipping Only): €0,00
TAX 19%: €46,14
coupon: -€50,00
Total: €431,86

When im not using the coupon its like this:
Sub-Total: €289,00
Free shipping (Free Shipping Only): €0,00
TAX 19%: €46,14
Total: €289,00

This is correct for me this output. The customer see the price of 289 euro en i diplat the tax of 19% that whats in it. So im showing the price from the beginning till the end what they have to pay.

Thanks in advance for the help and read
Hop someone can help me with this.

Greets
TALES