Percentage Discount trick you can use in real life!

Percentage discounts?
How would you usually work them out?
Work out a percentage of an amount, then take it off the initial amount- meanwhile the person at the checkout where that item is on sale is giving you the stink eye...
This percentage discount trick is easier than all that! Check it out and you will see for yourself!

Percentage of amounts trick: https://youtu.be/UDa3kRxCNak

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