How do you deduct 20% on a calculator?

Skip the Fuss: The Fastest Way to Calculate a 20% Discount

We’ve all been there: staring at a price tag, mentally wrestling with a 20% discount. Fumbling with percentages can be a frustrating experience, especially when time is of the essence. Fortunately, there’s a far simpler, quicker way to calculate a 20% reduction than painstakingly finding 20%, then subtracting it from the original price.

The secret lies in understanding what a percentage actually represents. When you’re taking 20% off, you’re essentially finding 80% of the original price – the remaining portion after the discount. This realization allows for a one-step calculation that’s significantly faster and less prone to errors.

Here’s the magic formula:

Original Price x 0.8 = Discounted Price

That’s it! Simply multiply the original price by 0.8. This instantly gives you the final price after the 20% discount has been applied.

Let’s illustrate with an example:

Imagine a jacket costs $100. To find the price after a 20% discount:

$100 x 0.8 = $80

The discounted price of the jacket is $80. See how much easier that is than calculating 20% of $100 ($20) and then subtracting it from the original price?

Extending this beyond 20%:

This method isn’t limited to 20% discounts. The key is to convert the remaining percentage into a decimal. For instance:

• 30% discount: Multiply the original price by 0.7 (100% – 30% = 70%)
• 15% discount: Multiply the original price by 0.85 (100% – 15% = 85%)
• 5% discount: Multiply the original price by 0.95 (100% – 5% = 95%)

This simple technique transforms a potentially complex calculation into a quick and straightforward process, saving you time and mental energy. So next time you need to calculate a percentage discount, remember this efficient method – and say goodbye to cumbersome calculations!