we have a B2B business in Germany and use bulk prices. With our current shop system we can enter bulk prices for every product and even every variation. On the frontend a table is shown with the different prices, for example 1-10 10€, 11-20 9€ etc.
I was surprised that Woocommerce has no such function as this is standard in other shop systems. While i have found some plugins for bulk prices here, it seams that none has this functionality for variations.
Perhaps someone here from Germany had the same problem and found the right plugin.