Introduction

Everyone loves a good discount, whether it’s during a seasonal sale or simply an unexpected bargain. One common discount offered is a percentage off the original price. In this article, we will discuss how to calculate 15 percent off.

Understanding Percentages

The term “percent” itself means “per hundred.” In other words, it is a quantity calculated as a fraction of 100. A 15 percent discount means that the price is reduced by 15 parts out of every 100. To apply this discount, we first need to calculate what 15 percent of the original price is and then subtract it from the original price.

Method 1: Using a Calculator

Step 1: Convert the percentage into a decimal

Divide the percentage by 100 to convert from a percentage into a decimal. For example:

15 / 100 = 0.15

Step 2: Multiply the original price by the decimal

To find what amount equals 15% of the original price, multiply your original price by the decimal obtained in Step 1:

Original Price * Decimal = Discount Amount

e.g., $150 * 0.15 = $22.50

Step 3: Subtract the discount amount from the original price

Now subtract this amount from your original price to get your discounted price:

Original Price – Discount Amount = Discounted Price

e.g., $150 – $22.50 = $127.50

Your discounted price would be $127.50.

Method 2: Manual Calculation

If you don’t have access to a calculator or prefer to do calculations manually, you can still easily calculate discounts.

Step 1: Find out what each unit will be worth after applying the discount

Since you’re calculating for a percentage (15) and percentages are calculated out of every hundred, break down your calculation into 100 parts.

Step 2: Subtract the discount from the original price

In our example, subtract 15 from 100 to know the new worth of each unit:

100 – 15 = 85

This means that each unit is worth 85% of its original value.

Step 3: Multiply the number of units by its new worth

Now, multiply your original price by the reduced value:

Original Price * Reduced Value = Discounted Price

e.g., $150 * (85 / 100) = $127.50

Your discounted price would be $127.50.

Conclusion

Calculating discounts is a useful skill that can save you money during sales and everyday shopping situations. The two methods provided above make it easy to apply a 15 percent discount to any price, whether you have access to a calculator or not. Happy shopping!