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