still not making sense...
lets take homes for example here that have a 4% base effect.
and say we have 100% BE and have 5.5% homes. what should your % bonus be for the population growth

Percentage Based Buildings = Base Effect * BE * Max(50%, % of building) * (100% - Max(50%, % of building))

% effect = 4% * 100% * 50% * (100% - 50%)

This just doesnt add up or make sense...