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Introducing online tools, support to calculate discount percentage and calculate percentage increase quickly and accurately.

### #2. How to use Tools Online to calculate percentage discount / increase?

#### 2.1. How to calculate discount percentage:

For example, a product costs 99k, is 10% off, you just need to enter the Calculate percentage increase/ discount of a specific product as follows:

1. Percentage is reduced. As above example is 10%
2. You choose increase.
3. Current price of the product. In the example it is 99
4. Result.

#### 2.2. How is the percentage increase in price calculated?

Likewise, enter the following:

1. Percentage increase in price. As above example is 10%
2. You choose `Increase`.
3. Current price of the product. In the example it is 99
4. Result.

### #3. Formula to calculate percentage discount / percentage increase

#### 3.1. Formula to calculate percentage discount

Formula: Amount-After-Discount = Price-Cost x [(100 –  %-discount-price)/100]

Apply to the example above: Amount-After-Discount = 99 x [(100 –  10)/100] = 89,1

#### #3.2. Formula to calculate percentage increase in price

Formula: Amount-After-Discount = Price-Cost x [(100 +  %-discount-price)/100]

Apply to the example above: Amount-After-Discount = 99 x [(100 +  10)/100] = 108,9

Hope this article will be useful to you, good luck!