Multiple Pie or Better Visualization for % Measure Values

Hi All,

Thank you for taking the time to take a look at my question. 

I have created a sample data set that mirrors the problem I am trying to solve. The actual data set isn't based on state or regional data but has a similar breakout which I can't include due to confidentiality.

Please see the below table for context:

I have created a measure that calculates: % of Responses > 3 Stars = sum(# of responses above 3 stars)/ sum(total # of responses) which gives me the correct % break down I am looking for. For example for Region A (7+8)/(10+11) = 71% or for Zip Code 1: 7/10 = 70%.

When using a pie chart I put this measure as the values field and the State, Region, and ZIP (in that order) in the legend field of a pie or doughnut chart. It shows me the below:

I would like to see two seperate pie charts and then have the abilitly for them to split into more pie charts as I drill down to the next levels of the report. Is this possible? And if it is, is there a better visualization that I should be using instead? The real data set has 5000+ unique keys at its lowest level so a pie chart obviously wouldn't be the best solution. Any help is much appreciated. I am new to power bi so sorry if this is a poor question!