Reverse populate a formula

Youredone82

New Member
Joined
May 31, 2021
Messages
1
Office Version
  1. 365
Platform
  1. MacOS
Hello,

i have a sheet I use for my recipes, it has the ingredients listed as rows, and in the columns are the amounts of ingredients needed in oz. if I type in an outside designated cell say 4 portions, the end column returns how many oz of each ingredient I need.
i would like to be able to reverse that formula to lets say add in the amount of an ingredient I have on hand, and have the other rows repopulate with the appropriate amount based on that cells input.
is it possoble to have an excel cell both be a output and an input?
Thanks for any answers
 

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When did Power Query debut in Excel?
Although it was an add-in in Excel 2010 & Excel 2013, Power Query became a part of Excel in 2016, in Data, Get & Transform Data.
is it possoble to have an excel cell both be a output and an input?
That can not be done with formulas. When you enter a value in to a cell (as an input) it will replace the formula (output) that is there permanently.

You could possibly work around it by using vba to re-write the formulas where needed, but that is just overcomplicating things. The realistic method would be to have a second sheet that is set up specifically for the reverse calculations.
 
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