Calculator finds solutions to common percentage problems. It's done in easy way: more like stories and everyday situations, less like math language.
- 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).
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!
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