Quote Originally Posted by lat9 View Post
What are your store's settings for:

Configuration->My Store->Display Prices with Tax
Configuration->My Store->Display Prices with Tax Admin

Where did the "Trade Discount" order-total come from? Does it rely on the "storefront environment" to perform its calculations?

I'm having a hard time seeing where the totals' difference "went", as the difference is 36.90 (which isn't any of the listed values).
Not sure why, but 36.90 is 20% * 184.50 which is both tax on the trade discount as well as the 20% tax on the total amount if delivery wasn't included in a sub-total.

Might almost be interesting to see if upon re-edit if the value would go down again. Another would be to alter the trade discount as a general factor from the onset of a test purchase and see how the values change. Working with a 50% value somewhat means that the data could come from either the reduction or from the pre-total. Perhaps momentarily reduce the reduction (thus not losing out on some in process cash flow) or apply it to some test product, but do the same thing with that item as was done above and see how it changes.