Formula to arrive back at original figure after adding %

Hi all, hoping I will be able to explain this , so hear goes...

If I add 20% to 100, obviously I get 120 ( Straight forward so far)

However if I take 20% from 120, again obviously this does not equal 100.(96)

I wonder if there is a formula that will ascertain the % in order to make sure I arrive back at 100.

Currently I just trial and error to come out with the % , in this example 16.67%

Probably overthinking this but hopefully explained it for some kind person to help me with a formula?

Cheers as always

Simon

Formula:

Please Login or Register  to view this content.

= 16.6667%


Regards, TMS

Your post does not comply with Rule 1 of our Forum RULES. Your post title should accurately and concisely describe your problem, not your anticipated solution.

Use terms appropriate to a Google search. Poor thread titles, like Please Help, Urgent, Need Help, Formula Problem, Code Problem, and Need Advice will be addressed according to the OP's experience in the forum: If you have less than 10 posts, expect (and respond to) a request to change your thread title. If you have 10 or more posts, expect your post to be locked, so you can start a new thread with an appropriate title.

To change a Title go to your first post, click EDIT then Go Advanced and change your title, if 2 days have passed ask a moderator to do it for you.

(This thread should receive no further responses until this moderation request is fulfilled, as per Forum Rule 7)

You're welcome.

Thanks for changing your thread title



If you are satisfied with the solution(s) provided, please mark your thread as Solved.


New quick method:
Select Thread Tools-> Mark thread as Solved. To undo, select Thread Tools-> Mark thread as Unsolved.

Or you can use this way:

How to mark a thread Solved
Go to the first post
Click edit
Click Go Advanced
Just below the word Title you will see a dropdown with the word No prefix.
Change to Solved
Click Save


You may also want to consider thanking those people who helped you by clicking on the little star at the bottom left of their reply to your question.

Thanks for the rep.