Online Percentage Calculator: increase, decrease and change

What is % of ?

is what percent of ?
What is the percentage increase/decrease
from to ?


Use the previous calculators it’s an Online Percentage Calculator that allows you to calculate The percentage easily. just input your values then click calculate.

It’s three types of Percentage calculators that allow you to calculate:


  • What is 20% of 300 dollars? it’s 60 dollars.
  • 60 dollars is what percentage of  300? it’s 20%.
  • What is the percentage increase/decrease from 60 dollars to 300? it’s 400%

As we know, technology allows us to speed up different processes that we used to complete with manual and somewhat slow methods. By using the internet, the amount of tools we get is quite wide, and all of them fit perfectly to our daily needs, like an online percentage calculator.

The calculation of percentages is one of the activities we use most in our daily lives. Percentages are used to calculate all kinds of numerical quantities, and their manual calculation can be a bit tedious and slow for many.

Of course, there are portable calculators, which specialize in solving different mathematical operations quickly and reliably. However, sometimes we may not have these calculators at hand, and its many buttons can often confuse us.

Online calculators are a fast and efficient solution for these operations. The Internet is full of websites that offer these tools with a simple and easy-to-use interface. These calculators provide different usage advantages, which adapt incredibly well to the requirements of each user.


Mainly, the online percentage calculator is available at any time and at any place. As long as the user has an internet connection, he can use one of these calculators wherever he is, without much effort or loss of time.

Within the Internet, there are many websites that offer these types of calculators that even deal with specific calculations of units such as currency, mass, volume, distances, among others. In addition, many of these calculators specify their uses, such as body fat and financial percentage calculators, among many others.

Quick and simple interface

Among the elements that determine the speed and effectiveness of a web page, the use and appearance interface is quite important. The user must enjoy a fast experience, which responds to their needs with a timely speed and without any complicated processes before reaching the result that the user is looking for.

The vast majority of these calculators have a fairly simple and easy-to-use interface. Their home screen is limited to containing the different percentage calculation functions they offer. Many of these websites do not contain many or any advertisements and unnecessary extras. In addition, they include some explanations regarding the percentage formulas they use for calculations.

However, some of the websites are not exclusively dedicated to the calculation of percentages. Many of these contain different sections in which they offer other types of content. They are mainly dedicated to mathematics and provide calculation and arithmetic exercises, references, mathematical explanations, various tools, definitions of percentages, formulas, studies, research, and other information of relevance.

Different functions

There are multiple optics from which percentages can be observed and treated. However, these calculators mainly work with three unique functions.

Firstly, there is the option of solving what the numerical quantity is based on a certain percentage of the total quantity. For example, how much is the 15% of 10,000? The calculator will say that it is 1500.

After that, the other option is to calculate the percentage that a certain quantity means based on a total numerical quantity. That is, what percentage do 30 represent out of a total amount of 150? The calculator will answer that it is 20%.

Finally, the last percentage calculation determines the ratio of the percentage increase or decrease of a numerical quantity to a larger or smaller quantity. In other words, it calculates the difference expressed as a percentage. For example, what is the percentage increase between 800 and 2500? The calculator will give a result of 212.5%. On the other hand, as for the percentage of decrease, this will be expressed in a negative result. What is the percentage of decrease from 60 to 33? The given result is -45%.

As mentioned above, there are also other percentage functions and calculations based on different contexts where this numerical relationship applies. Of course, this option is only offered by some calculators specialized in a specific context. This may even mean that such calculators incorporate other methods or forms of calculation to produce results based on existing data or numerical information.

“Online percentage calculator” is a very effective and accurate method of solving these mathematical concerns. There is a wide variety and all of them fit perfectly to any requirement of each user, no matter how simple or complicated it may seem.