Formula in monday subitems to a numbers column

Hey Make,
I am very new to and am trying to solve a problem in with Make.

This is my current board:

I currently have a formula column that calculates the sprint “Saldo” value based on what timeframe the current project is in. (in january it gives back Sprint 1’s value)

the formula i use for this action is:

I want to set this value to the “Nummers” column, but since this is a subitem the normal and intergrated apps in Monday wont work.

I want to create a scenario in Make that eather pushes the value of the formula column to a numbers column or create the formula in make and push it toward a numbers column.

How do I go about creating this scenario in make?