Answer: %82
Step-by-step explanation: First you want to subtract 200-36 because you need the final price to help you get the percentage. Next, you times 200 by different percentages to try to get to 164 which is the final price. I assumed it was %80 first, so I did 200 times .80, but that was 160, so then I proceeded to times it by .82 or %82 and that was the answer. Hope this helps!