Inclusive = Part of the price.
Exclusive = Added to the price.
"What is inclusive of VAT?
Correct use of the terms VAT inclusive and exclusive. ... Therefore the term VAT INCLUSIVE must be used when describing a price that already includes the tax, and the term VAT EXCLUSIVE when describing a price to which tax is yet to be added to arrive at the final cost."
I didn't bother to test "exclusive" in blesta as you know thats not what I wanted... but its clear based on your examples that your terminology is incorrect to mine.