How to Calculate a Discount and Sale Price | Math with Mr. J

Welcome to How to Calculate a Discount and Sale Price with Mr. J! Need help with calculating discounts and sale prices? You're in the right place!
Whether you're just starting out, or need a quick refresher, this is the video for you if you're looking for help with discounts and sale prices. Mr. J will go through discount and sale price examples and explain the steps of how to calculate a discount and how to calculate a sale price.
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Hopefully this video is what you're looking for when it comes to calculating discounts and calculating sale prices.
Have a great rest of your day and thanks again for watching! ✌️✌️✌️

[@MathwithMrJ]

✅Thanks so much for watching! ✌✌✌
⚠IMPORTANT NOTES WHEN WORKING WITH DISCOUNTS AND SALE PRICES⚠
✅This video used US currency in the examples, but discounts and sale prices can be calculated using this method with other currencies as well.
✅Money always goes to the hundredths place when we have change. For example, #1 gives us an answer of 10.2 when we multiply 68 x 0.15. I wrote the discount as $10.20 because money goes to the hundredths place when we have change. $10.2 does NOT mean $10 and 2 cents, it means $10 and 20 cents, so we write it as $10.20. On the other hand, if you get a decimal that goes past the hundredths place, for example 15.83845, then it needs to be rounded to the hundredths place. That decimal would round to $15.84. Something to keep in mind.

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For an easier explanation:
1. Covert the percentage to a decimal form by moving the decimal to the left twice.
2. multiply them
3 with the multiplication answer, minus it from the original price.

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[@archqangelics]

I don’t know if this works every time like this method, or if it’s as accurate. However, my teacher taught me, what I believe, is a different method ?
You basically subtract the percentage from 100, divide that given number by 100, and then multiply it with the amount of money given.
For example : for question 2, you would subtract 40 from 100, giving you 60.
- After that, you would divide 60 from 100, giving you 0.6.
- And then finally, you would multiply 0.6 with $219.95, giving you the answer, $131.97.