How do i calculate mathematically the communit yplaza?

i know 1 villager equals 4 llamas

but it says it increases production 112%. So if a villager normally takes 25 seconds to create, how do i calculate to know how much time it will take me to create a villager?

Easiest way to calculate is to divide villager creation time by bonus speed, if you have 12% bonus it is 25 / 1.12 = 22.3 if you have 112% bonus speed it is 25 / 2.12 = 11.8

I think the 112% is just 12% increase from base speed so it would be the 1.12 number, the 2.12 number would be 212%