Percentage Decrease Calculator

How to work out percentage decrease

To work out how to work out percentage decrease, you follow a simple formula. Here’s a step-by-step guide on how to calculate the new price after applying a percentage decrease to the original price.

Formula

The formula for calculating the new price after a percentage decrease is:

New Price = Original Price - (Percentage Decrease / 100 * 
Original Price)
    

Steps to Calculate:

1. Identify the Original Price: Determine the initial price of the item in pounds (£). For example, let’s say the original price is £100.
2. Determine the Percentage to Decrease: Decide what percentage you want to decrease from the original price. For instance, if you want to decrease by 20%, use 20 as your percentage.
3. Convert the Percentage to Decimal: To convert the percentage into a decimal, divide it by 100.

   Decimal = Percentage Decrease / 100
               

4. Calculate the Discount: Multiply the original price by the decimal to find the discount amount.

   Discount = Original Price * Decimal
               

5. Calculate the New Price: Subtract the discount from the original price.

   New Price = Original Price - Discount
               

Example Calculation:

Let’s say you have an item that costs £50, and you want to decrease it by 15%:

1. Original Price: £50
2. Percentage Decrease: 15%
3. Convert to Decimal:

   Decimal = 15 / 100 = 0.15
               

4. Calculate the Discount:

   Discount = 50 * 0.15 = 7.50
               

5. Calculate the New Price:

   New Price = 50 - 7.50 = 42.50
               

Conclusion

The new price after decreasing 15% from £50 is £42.50.