expression to make daily spent limit based on previous expenses

[DaGi07]

Hello guys,

i'm trying to build a money saving app.
I'd like to set a daily spending limit based on an amount I'd like to save per month.
So far easy.

In a few words, I'd like to move the savings from the previous day to the next day

I'll explain better with an example:

44,52=22,26 +22,26

  66,78=44,52+22,26  and 79,04=66,78+12,26

 

How can i express with an expression the column "spent limit progressive" in table 2?

Thanks!!

[DaGi07]

I noticed that the formula in spreadsheet can be simplified like this but i dont' manage to transform this in appsheet expression..