Unlocking Discounts: How to Calculate a Percentage Off
Have you ever been presented with a sale price and wondered how much you're actually saving? Figuring out the percentage off can help you make informed purchasing decisions.
Let's take a common scenario: You find an item originally priced at $180, now marked down to $79. How do you calculate the percentage off?
Here's the Breakdown:

Find the Difference: Subtract the sale price from the original price: $180  $79 = $101

Divide by the Original Price: Divide the difference by the original price: $101 / $180 = 0.561

Multiply by 100: Multiply the result by 100 to express it as a percentage: 0.561 x 100 = 56.1%
Therefore, you are getting a 56.1% discount on the item!
RealWorld Application:
This calculation isn't just for shopping. It's useful in various scenarios:
 Negotiating a Salary: You can use this to figure out the percentage increase you're requesting.
 Analyzing Price Changes: Tracking the percentage change of stock prices or gas prices can provide valuable insights.
 Budgeting: Calculating the percentage of your income spent on different categories can help you manage your finances.
Understanding the Math:
The formula used to calculate percentage change is:
Percentage Change = [(New Value  Old Value) / Old Value] x 100
In our example, the "New Value" is the sale price ($79), and the "Old Value" is the original price ($180).
Further Exploration:
 Online Calculators: Several online calculators can perform this calculation quickly and easily. Simply input the original price and the sale price, and the calculator will provide the percentage off.
 Reverse Calculation: You can also calculate the original price if you know the sale price and the percentage off.
By understanding how to calculate percentages off, you can become a savvy shopper and make informed decisions about your finances.