What is the formula for calculating tax percentage?

What is a sales tax decalculator?

  1. Step 1: take the total price and divide it by one plus the tax rate.
  2. Step 2: multiply the result from step one by the tax rate to get the dollars of tax.
  3. Step 3: subtract the dollars of tax from step 2 from the total price.
  4. Pre-Tax Price = TP – [(TP / (1 + r) x r]
  5. TP = Total Price.

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