SOLUTION: What # do I need to multiply a Total Amount by if the Total included 6.25% sales tax on a Product and it's the value of the original Product and the separate value of the sales tax

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Question 655029: What # do I need to multiply a Total Amount by if the Total included 6.25% sales tax on a Product and it's the value of the original Product and the separate value of the sales tax I need to know.
(4 months of my Quickbooks files were lost & I only have credit card slips with Totals).
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
What # do I need to multiply a Total Amount by if the Total included 6.25% sales tax on a Product and it's the value of the original Product and the separate value of the sales tax I need to know.
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Equation:
Let x be product cost before tax.
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1.0625x = final cost
x = (final cost)/1.0625
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product cost before tax = final cost/1.0625
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Cheers,
Stan H.