I don't understand your requirements. Can you please configure some dummy data into a .twbx and upload that, showing your working so far - this will assist us in working out what it is that you are trying to do.
Can you also have another go at articulating your requirements ? Put it very simply, e.g. like 'if the % is less than 30% then I want it to be green, if it is between 30-10% I want it to be grey, and less than 10% I want it to be red' (also define what 'it' is). Also try not to use the word 'cluster' anywhere because its meaning is too abstract in this scenario.
Thanks for your interest & quick response on it.
As you suggested, I have tried to explain the rules in a simpler manner.
Attaching the PPT document, Excel data file & the tableau working file.
I stuck in callout section for the combinations (World X Category).
Let me know if you need some other information.