If given sales tax percentage and final price how do i find cost?

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Guest May 5, 2015

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Best Answer

Divide the final price by (1 + the sales tax percentage converted to decimal form. )

For instance.......

Final price = $110 ... Sales tax = 10% = .10 in decimal form......so we have...

110 / (1 + .10) = 110 / 1.10 = $100 = cost

CPhill May 5, 2015

CPhill · Answer 1 · 2015-05-05T04:10:38

Divide the final price by (1 + the sales tax percentage converted to decimal form. )

For instance.......

Final price = $110 ... Sales tax = 10% = .10 in decimal form......so we have...

110 / (1 + .10) = 110 / 1.10 = $100 = cost