Since I have activated "Mindestpreis anzeigen" the shown prices in the product list (for retailer, not for customer) and in the product details are different.
This phenomen is only, when the customer is logged in as a retailer, because they have their own prices, displayed without tax.
When the function "Mindestpreis anzeigen" is set "off", anything works well.
For example, look at the screen shots below. Two screenshots for the same product, but different prices.
Joomla: 3.4.5
JoomShopping: 4.11.3
Website Url: http://www.juwelen-binder.at
JoomShopping: 4.11.3
Website Url: http://www.juwelen-binder.at