OK,
just wondering as I am pretty sure taxes are supposed to be calculated after the trade up value is deducted.

Items Purchase - Item Trade in * taxes = Total Cost.
atleast thats how other places work.

I tried to trade up yesterday and the site did the
Item cost * taxes - My Trade in = total cost.

Anthem MRX520
M5HPv4
VP160HPv4
QS10v4