[HELP] Complex Metric Formula

[PMPalex]

Hi!

I need your help with a DAX metric. I have an table where there are FORMULA nodes (red arrow in the image) composed by other "simple" nodes or from these own formulated nodes. 

Each of these formulated nodes can have additions, subtractions, multiplications or divisions (+ , - , *, / ) with other nodes. I have a metric created (IMPORTO_ACUMULA in the image) that calculates the data for the simple nodes.

How can I create a unique complex metric that evaluates the formula and calculates the IMPORTS for each node ?

THANKS IN ADVANCE!!!!!!!!