When shopping, everyone wants to find satisfactory products at reasonable prices. To compare prices and save money, we need to know how to calculate discount percentage.
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So how to quickly and accurately calculate the discount percentage of a product? Let's find out with Nhah.vn now!
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"1.1 How to calculate discount percentage If you want to know how much discount an item you buy has, you subtract the price after the discount from the original price, then divide by the original price and multiply by 100.
Discount % = (Original price - Price after discount)/Original price x 100
For example, a pair of pants originally cost 500,000 VND, now only costs 400,000 VND.
So the discount percentage is: (500,000 - 400,000) / 500,000 x 100 = 20%
How to calculate discount percentage
1.2 How to calculate the amount after discount and discount amount Amount after discount = Original price x (100 – %discount)/100
For example, when you go shopping, the original price of the item is 570,000 VND and you get a 20% discount.
So the fastest way to calculate the amount you have to pay is:
Applying the example, the amount after discount is: 570,000 x (100 - 20) / 100 = 456,000 VND
And the discounted amount: Original price x 20 /100 <=> 570,000 x 20 /1000 = 114,000 VND
You can also use the quick online discount percentage calculator below
https://miniwebtool.com/en/percent-off-calculator/
Above we have shown you how to calculate the percentage of discounted price. Join us to learn more about some related calculation formulas below!
Calculate the fastest price increase percentage Amount after price increase= Original price x [(100 + % price increase)/100]
If you want to calculate the percentage increase in price, add that percentage increase to 100%. For example:
Item price is 570,000 VND. Now the price of this product increases by 20%, the quick calculation formula will be:
100% + 20% = 120%.
So, the price you need to pay is: 570,000 x 120% = 570,000 x 1.2 = 684,000 VND.
How to calculate percentage increase in product price
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How to calculate the original price of the product after discount For example, you buy a product during a discount promotion. An item was sold for 10 million VND, and they said it was 20% off the original price.
So the question is how to calculate the original value of this product?
You do the following:
Because the product is already 20% off => then you take 100% - 20% = 80%
Now we will use the following formula: Original value = Price after discount / Percent remaining after discount
Applying the example, we can calculate: Original value of the product = 10,000,000 / 80% = 10,000,000 / 0.08 = 12,500,000 VND.
See more: Learn how to calculate product costs according to norms
Some other percentage formulas By the way, Nhan.vn will list a few more formulas to calculate % for some other cases related to statistical work for you to better understand. For example, calculate the percentage difference between 2 years, how much the product increased compared to the previous day, % bank interest rate, % profit,...
4.1 Formula to calculate % growth of the following year compared to the previous year In 2018, company A had a revenue of 100 billion VND.
In 2019, this company A had a revenue of 140 billion VND.
So what is the 2019 revenue growth % of company A?
The following formula helps calculate growth percentage: %(Growth, profit,…) = (Next year – Previous year)/Previous year * 100
=> The 2019 growth percentage of company A is: [(140 – 100)/100] * 100 = 40 %
Learn more examples:
On May 22, 2019, your store sold a ballpoint pen for 3,000 VND.
But, on May 23, 2019, the same ballpoint pen was sold at your store for 5,000 VND.
So the question is how much percent (%) did that product (the ballpoint pen) increase compared to the previous day?
Quick calculation:
Recipe:
[(Next-day-price – Previous-day-price) / Previous-day price ] x 100
=> The % increase in price on day 23 compared to day 22 is: [(5,000 – 3,000) / 3,000] * 100 = 66.67 %
Some other percentage formulas
Some other percentage formulas
4.2 Calculate the percentage (%) of bank interest rate The specific price is like this, for example you deposit 500,000,000 VND into Vietinbank, you want to calculate the interest rate after one year of depositing the bank, you calculate as follows:
Oh, I forgot, there are bank deposits (non-term deposits, 1-month deposits,... to 1-year deposits), so the interest rate % will be different. For example, if you deposit 500,000,000 with a 36-month term, the interest rate you will receive is 7%.
Formula for calculating today's fixed bank interest rate
Interest = Deposit amount x Interest rate (% year) x (Deposit days/365)
Or
Interest = Amount of deposit x [Interest rate (% year)/12] x Number of months of deposit
Applying to the above example we have:
Formula 1: Profit = 500,000,000 * 7/100 * (1095/365) = 105,000,000 VND
Formula 2: Interest = 500,000,000 * (7/100/12) x 36 = 105,000,000 VND
The monthly interest rate calculation formula meets the needs of calculating interest on basic goods
Monthly interest amount = Deposit amount x Interest rate (%year)/12
Applying the example above, we will calculate the monthly amount you get from 500,000,000 as:
500,000,000 * (7/100/12) = 2,916,666 VND"
