Or take the price multiply by .085. That gives you your tax. Just add that on to the original price of the video card. It's the same as Monger's up there. I just converted the 8.5 to decimal percent already
Ex.
1) Price= $95.00 Tax= 8.5%
2) $95x.085= $8.075
3) $8.075+$95.00= $103.08 (rounded to the nearest hundreths)