Hi!
I’ve set up a live example here: https://aulumbi.dk/vare/glas-450-g-6-kantet-12-stk/
The page is unfortunately only in Danish, but hopefully that will not be too much of an issue. The shopping cart is in the upper right corner.
The product should cost 45 DKK per piece when buying more than 10 pieces. In the shopping cart the subtotal shows 562.5 DKK which is equal to 45*10*1.25, where the 25% is the Danish VAT. Thus, the VAT is added twice, as the 45 DKK already included VAT.
