We've setup some tier prices for some of our products, but tax calculation goes wrong. It only goes wrong when we try to order products regarding the tier prices, not when we order less.
For example, if we order 5 products, tax calculation is correct.
If we order 50 products, the tax calculation goes wrong by a few cents.
50 x 16,50 = € 825,-Including 21% taxes, that should be € 998,25
Instead, it shows € 998,50
Are we doing something wrong? How can we fix this?