What particle to use as *of* when saying "X percent *of* something"?

Question

I would like to be able to say X percent of something, but I haven't been able to find the particle that would correspond to of. Could you use の？　

For example:

人口の10パーセント　(10 percent of population)?

Answer 1

Yes, I think you can say の here:

人口の１０％
10% of the population

I think it would be more common to write ％ than パーセント, but either way.

As an aside, for even tenths I think you can use 割 instead:

人口の一割
a tenth of the population

Each 割 is one tenth.