How to calculate discount percentage formula

When it comes to shopping, finding discounts and deals can save you a considerable amount of money. However, understanding how to calculate the discount percentage is key to accurately determine the amount you’ve saved. In this article, we will explore the formula for calculating discount percentage and walk through a few examples to help you easily understand the process.
1. The Basic Discount Percentage Formula
The basic formula for calculating discount percentage is as follows:
Discount Percentage = (Discount Amount / Original Price) x 100
Here’s a step-by-step guide on how to use this formula:
Step 1: Determine the original price of the item.
Step 2: Determine the discounted price of the item after applying the discount.
Step 3: Calculate the discount amount by subtracting the discounted price from the original price.
Step 4: Apply the discount percentage formula by dividing the discount amount by the original price, and then multiply by 100.
2. Examples of Using the Discount Percentage Formula
Example 1:
Original Price: $100
Discounted Price: $70
Discount Amount = Original Price – Discounted Price
Discount Amount = $100 – $70 = $30
Discount Percentage = (Discount Amount / Original Price) x 100
Discount Percentage = ($30 / $100) x 100 = 30%
Example 2:
Original Price: $250
Discounted Price: $212.50
Discount Amount = Original Price – Discounted Price
Discount Amount = $250 – $212.50 = $37.50
Discount Percentage = (Discount Amount / Original Price) x 100
Discount Percentage = ($37.50 / $250) x 100 = 15%
3. Tips and Tricks for Calculating Discounts Quickly
While using the formula is straightforward, there are some additional tips and tricks that can help you calculate discount percentages quickly:
– If an item is on sale for a specific discount, such as 20% off, you can quickly estimate the final price by multiplying the original price by the percentage you will pay (100% – 20% = 80%). For example, an item priced at $50 with a 20% discount would have a final price of $50 x 0.8 = $40.
– To find the discount percentage given the original price and discounted price, divide the difference between original and discounted price (discount amount) by the original price, and then multiply by 100.
– Familiarize yourself with common percentage values and their decimal equivalents to calculate discounts faster in your head.
By understanding how to calculate discount percentage using the formula provided above, you’ll be able to spot great deals and make well-informed shopping decisions. Practice makes perfect; as you become more accustomed to using this formula, it will become second nature to quickly calculate discounts on the fly.