How do you calculate the percentage of something? like what is 200% of 47?

To calculate the percent of something I always think of it in decimals. 100% is 150% is 1.5. So 200% of something is basically times 2. If it's something that says a 50% INCREASE/DECREASE(key word) you multiply by .5 then add to the original number. Hope I helped

I was taught to do: is. %
--- = ---
of. 100
so in your case your equation would look like x. 200
=
47. 100
so you cross multiply 200 and 47 and get 9400.
then cross multiply 100 and x and you get 100x.
now you divide 9400 by 100 and get 94.
so the answer is x=94 but for some reason this equation wasnt written correctly

Answer: 900°

good luck on your studies! : )

david edward.