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How to Calculate Sales Tax Backwards From Total
- 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 FromPost-TaxPrice.
Accordingly, how do I calculate tax from a total?
Multiply the cost of an item or service by thesalestax in order to find out the total cost.Theequation looks like this: Item or service cost xsalestax (in decimal form) = total sales tax.Addthe total sales tax to the Item or service costtoget your total cost.
- Subtract the discount from 100 to get the percentage oftheoriginal price.
- Multiply the final price by 100.
- Divide by the percentage in Step One.
Also to know, how do I calculate sales tax from gross?
Deducting Sales Tax to FindGrossSales To figure out the gross amount lessthesales tax, divide the receipts by 1 plus thesalestax rate. So, if the sales tax rate is 7percent, dividethe total amount of the receipts by1.07.
Multiply by the Tax Rate Multiply the item's pre-tax price bythetax rate, expressed as a decimal. So if the item inquestioncosts $25 and is taxed at a 7 percent rate, you have $25×0.07 = $1.75. This is the amount of tax to be addedto theitem's price.