Question

How do you do the percentage of having 3488 species and 2124 endemic species what is the percentage of endemic species

Answer 1

well, we're assuming from 3488 to 2124 what's the percentage change?

well, the numerical change is just 3488 - 2124 = 1364.

if we take 3488(origin amount) to be the 100%, what's 1364 off of it in percentage?

`\begin{array}{ccll} Amount&\%\\ \cline{1-2} 3488 & 100\\ 1364& x \end{array} \implies \cfrac{3488}{1364}~~=~~\cfrac{100}{x} \\\\\\ \cfrac{872}{341} ~~=~~ \cfrac{100}{x}\implies 872x=34100\implies x=\cfrac{34100}{872}\implies x\approx 39.11`