# Quick Answer: How do you find tax and discount?

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You can also convert the discounted percentage to a decimal and multiply that by the original price. To calculate a tax, you can convert the percentage to a decimal, then multiply it by the price. If you want to know the total cost, including the tax, you can multiply the original price by one plus the decimal.

## What is the formula to calculate tax?

The equation looks like this: Item or service cost x sales tax (in decimal form) = total sales tax. Add the total sales tax to the Item or service cost to get your total cost. Formula: Item or service cost x sales tax (in decimal form) = total sales tax.

## How do you calculate a discount?

The formula to calculate the discount rate is: Discount % = (Discount/List Price) × 100.

## Do you calculate tax before or after discount?

Discounts are applied before taxes – so any discount that you’ve created will be applied before the Sales Tax you’ve created.

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