Calculate a value using previous cell in same column with arrayformula or byrow in Google Sheets - is it possible?
I have a very simple formula for calculating portfolio value in Google Sheets that I'd like to automate (so the calculation fills automatically as new lines are added), but I can't seem to find a way to reference a previous cell in the same column using arrayformula or byrow. I keep getting a circular reference (which I understand) but just can't seem to find a workaround. Can anyone help, or perhaps put me out of my misery by letting me know it's just not possible (because of the way arrays & byrow work). Or, if there is another way?
Here's the data ($100,000 is in first value entered into cell B1, calculations are done in subsequent cells B2,B3,B4 etc...):
Appreciate any and all help!
Solution
Use SCAN:
=SCAN(B1,A2:A5,LAMBDA(a,c,a*(1+c)))
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