How to calculate averages in a Matrix visual using INSCOPE for different groups?

Hi, 
I am attempting to fill a matrix based on a table shared here.

This Matrix is representing a % of usage (Field U) of tools (Field Tool) used per Applications (Field A). These Applications are grouped per V, also per P and H.

Until now, I am able to represent this information in a Matrix. However the challenge I am facing is to calculate the average of usage in the grouping rows (V, P and H). Meaning that I have to have rows per A, here the values are shown without calculation, then per V here the average is calculated ok. But then I have to show the row per P. P must be the average of the V rows contained and already calculated. For H I have to see the average per P rows contained and already calculated. So far, for P I am getting for P the average of the column but not at V level but at A level so the result is not ok. Another challenge I have is the total column, I need this column is calculated with the average of each row considering the respective level. Below is the measure I am using:

Measure

---------

U =
VAR AveragePerToolInV =
AVERAGEX(VALUES('Table'[Tool]),[AR_M])
VAR AveragePerV =AVERAGEX(VALUES('Table'[V]),AveragePerToolInV)
VAR AveragePerP =AVERAGEX(VALUES('Table'[P]),AveragePerV)
VAR AverageForPRow =AVERAGEX(VALUES('Table'[P]),AveragePerV)
VAR AveragePerH =AVERAGEX(VALUES('Table'[P]),AverageForPRow)
VAR AverageForHRow =AVERAGEX(VALUES('Table'[T]),AveragePerP)
RETURN
SWITCH(TRUE(),
ISINSCOPE('Table'[A]),[AR_M],
ISINSCOPE('Table'[V]),AveragePerToolInV,
ISINSCOPE('Table'[P]),AverageForPRow,
ISINSCOPE('Table'[H]),AverageForHRow,
// Default case for overall total
AVERAGEX(VALUES('Table'[H]),AverageForHRow)
)
[AR_M] is another measure AR_M = AVERAGE('Table'[UU])

I would really appreciate your support.