Reverse Percentage Calculator - Find original value before a percentage increase or decrease
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Reverse Percentage Calculator
Reverse Percentage Calculator helps you find the original value before a percentage increase or decrease.
Instead of calculating backwards manually, simply enter the final value and the percentage change to instantly calculate the original amount.
Features
Reverse percentage increase calculation
Reverse percentage decrease calculation
Instant and accurate results
Mobile-friendly interface
Clean and distraction-free design
No signup required
Completely free to use

Replies
A history panel for recent calculations would be a great add, especially for things like loan amortizations or unit conversions where you might want to compare two scenarios. Even just keeping the last 10 results per category would save a lot of retyping.
honestly pretty handy, the percentage calculator is super quick and doesn't make you click through a bunch of ads first. kind of a hidden gem for basic stuff.
@eminenv9f I really appreciate your words. It is great to know that you like FreeCalcTools.
I made FreeCalcTools to help people do calculations quickly and easily so I am happy that you like the simple way it works and that there are no ads. People do not want to deal with a lot of popups just to figure out a math problem.
Thank you again for saying nice things about FreeCalcTools and, for calling it a hidden gem. I will keep adding calculators to FreeCalcTools while making sure it stays fast and easy to use. 🚀
The breadth of categories here is impressive, but I really like how clean and uncluttered each individual calculator page feels. Makes it easy to just pop in, do the math, and get back to what you were doing.
@serpil834703 I am really happy you like it. I was hoping you would like the way FreeCalcTools works.
This is what I was trying to do with FreeCalcTools. FreeCalcTools has a lot of categories but I wanted to make sure each page with a calculator is easy to use and loads quickly. I want people to be able to get their answer from FreeCalcTools without having to do many things or see a lot of extra stuff they do not need.
I am glad you think FreeCalcTools is simple and easy to use. I will keep adding calculators to FreeCalcTools and make sure they are all easy to use and work well. Thank you again for liking FreeCalcTools and, for helping me.
Have been using the percentage and unit conversion calculators a lot lately, really handy. One thing that would make it even better is a history or saved calculations tab so you can go back to a previous result without re-entering everything.
@tahirsakkai74i Thank you much. I am really happy to hear that you have found the percentage and unit conversion calculators for your work.
I also want to say that I like your idea about adding a History or Calculations feature to the calculator. This would be very helpful because users can look at their results without having to enter the same numbers all over again. This is especially good for people who do the calculations many times.
The idea of a History or Calculations feature is a great one and I will think about it as I keep making FreeCalcTools better. Thank you again for giving me your thoughts and suggestions, about the feature. This really helps me decide what to do with FreeCalcTools.