They are, in other words, also known as the shipping calculators. **Promotions calculator** designs the system in which they offer discounts to the customers. The key difference is that a promotion camouflages the charging prices as an offer reduced to a certain amount.

## What are the Promotions Calculator used for?

The promotions calculator consists of mainly three types. They are as follows:

- Flat Rate
- Flexi Rate
- Tiered Percent

A Flat Rate promotion calculator summarizes the full amount of order and then places a significant fixed discount on it.

The Flexi rate offers comparatively smooth amount of discount depending on the number of items that are bought.

A base amount is set for a constant order, if a customer crosses that base line, there will also be an increase in the discount. This exponential increase is noticed in the Tiered Percent promotion calculator.

## How To Calculate Percentage Discount Using Calculator?

If you want to calculate the Percentage Discount Using Calculator in manually then follow the below formula.

Suppose your bought product original price $22.95, You have got 25% discount and sales TAX% 5%.

Now see the formula how to calculate Percentage Discount and find the percentage discount price.

`Discount percentage formula= Original Price - ( Discount% x Original Price ÷` 100`)`

**Example:**

=> 22.95 – (25% x 22.95 ÷ 100)

=> 22.95 – 5.7375

=> 17.21

So you have to Pay $17.21 (without TAX). But if you have to pay TAX also then follow the below process.

`Discount percentage with TAX formula= Sales Tax` x `Discount Price + Discount Price`

Now see how to calculate with TAX fee.

**Example:**

=> 5% x (17.21 + 17.21)

=> 18.07

## Formula: How To Calculate Discount Percentage In Excel Sheet?

If you want to know that how to Calculate Discount Percentage in Excel then arrange a excel sheet like the below table.

A | B | |

1 | Original Price: | 22.95 |

2 | Discount % | 25% |

3 | Sales Tax % | 5% |

4 | You have to pay: | |

5 | You have to pay with Tax: |

Now use the formula on You have to pay cell (B4) `=B1-(B2*B1)`

If you have to pay Tax also then use the formula on B5 cell `=B3*B4+B4`

## Finding The Original Price Given The Sale Price And Percent Discount:

If need to know that original price then follow the below formula.

**Original price = Discounted price ÷ (1 – discount ÷ 100)**

Firstly divide your discount price with 100 then minus it from 1. Then divide the discounted price by the number that you got in the first calculation.

**Live Example:**

=> 17.21 ÷ (1 – 25% ÷ 100)

=> 17.21 ÷ (1 – 0.25)

=> 17.21 ÷ 0.75

=> 22.95

### How do you take 20% off a price in Excel?

If you want to take 20% off a product price in excel then follow the method: At first multiply discount% with original price then subtract it from the original price.

Suppose the original price O, Discount Price DP. Now see the equation.

DP= O – (20% x O)

### Which Is Better Successive Discount of 40 And 30?

For flat 70% discount is standard and it’s better than 40 and 30.

### How do you calculate 15% off?

I calculate by the following: Original price – (15% x Original price)

It can give me exact off percentage.

### How Do You Calculate 5, 10, 25, 40 Percent Off?

Everything is the same just change the % value. So your formula is: Original price – ( discount% x original price)