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ENGLISH
POLSKIThis is ancient version of calculla.com
left here for archival purposes.
All calculators should still work, but you can't be sure.
We also don't update them anymore, so expect outdated info.
We suggest to move to new version of Calculla.com
by clicking the link: Percentage
left here for archival purposes.
All calculators should still work, but you can't be sure.
We also don't update them anymore, so expect outdated info.
We suggest to move to new version of Calculla.com
by clicking the link: Percentage
Percentage
Calculator finds solutions to common percentage problems. It's done in easy way: more like stories and everyday situations, less like math language.
Some facts
- One percent (1%) is equal to fraction 1/100 or 0,01.
- To convert some number into percent, you need to convert it to fraction with 100 denominator first. Then, nominator of fraction will tell you "number of percents". For example fraction 3/4 after converting to denominator 100 is equal to 75/100, so it's equal to 75% (simply 3/4 = 75%).
- If you need calculate a percent of a number, you have to multiply that number by a proper fraction with 100 denominator. For example 50% from number 10 is equal to 50/100 · 10 = 5.
- The concept of percentage is very useful and popular in many areas of our life, for example:
- Income from bank deposit is usually defined as percent of capital, that you would earn after one year. It's so called annual rate of return.
- Change in a value is often expressed as percentage of inital value. For example: the handbag is 20% cheaper than it was before the summer discount.
- Concentration of one substance in another is often expressed in percentage values (percentage concentration). For example you can buy 3% solution of hydrogen peroxide to desinfect wounds. It means that in 100g of solution you'll get 3g of the active substance (i.e. hydroden peroxide).
- Income from bank deposit is usually defined as percent of capital, that you would earn after one year. It's so called annual rate of return.
How to use this tool
- First of all, find the sentence in calculator, which describes your problem in the closest way. However, don't take those sentences too literally ! Those sentences describe example situations - like buying handbag under promotion. However, you can put any other product in this place. Be creative, don't waste your imagination.
- Next, click on one of input fields in the sentence and enter your own value.
- After you've entered the numbers in the particular sentence, the other part of a sentence will adjust automatically, displaying the correct number as a solution.
- Remember - if you can't find a sentence describing your situation, feel free to drop us a word. We will be happy to add the missing case for you!
1. Basics:
1.1.
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| 1.2. The number is equal to ?%. | ||||||
1.3.
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| 1.4. % from the number is ?. |
2. Shopping:
| 2.1. The bike was at a price of $. Next, its price has been raised by %. After that, the bike costs ? now. |
| 2.2. I'm a regular customer in The Shop and I obtained % discount for future shopping. Regular price of washing machine is $, but I will pay only ?. |
| 2.3. Yeah! There is a promotion this week - it's % discount for all products. Some nice handbag costs $ now. It means, the same handbag was at a price of ? before. |
| 2.4. The mobile phone costs $ in first shop and $ in another one. It means that, price offered by second shop is ?. |
3. Bills:
| 3.1. My usual electricity bill is about $ per month. Unfortunately, the bold man in TV was talking about upcoming increase of electricity price by %. It means I will pay ? each month which is ? more. |
| 3.2. Flat owner increased my rent by $. Before that, I was paying $ to him. This means my rent has grown by ?%. |
| 3.3. My monthly gas bill is $ in average. It turned out, that I would pay $ when I switch to another supplier. It will be ?. |
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