Question: how to find the percentage of sales tax charged?
Answer: Subtract the Tax Paid From the Total. ...  Divide the Tax Paid by the Pre-Tax Price. ...  Convert the Tax Rate to a Percentage. ...  Add 100 Percent to the Tax Rate. ...  Convert the Total Percentage to Decimal Form. ...  Divide the Post-Tax Price by the Decimal. ...  Subtract the Pre-Tax Price From Post-Tax Price.