No way upper class is 10%. What is Ndii smoking? Ndii's problem is that outside of working for the world bank, he has had no other real formal employment or business experience. He is a total academic that spends time on twitter coming up with theses bizarre mathematical calculations that he pulls out of thin air. The other day he called a guy stupid and said economics has no practical value (then why is he with Ruto and spreading this bottoms up theory?)
Upper class is 0/01% of Moi, Kenyatta, Kibaki, Biwott (basically, political thieves)
Middle class is majority kikuyu slum lords in Nairobi; bar owners and some kikuyu big time hawkers at Gikomba