The table shows the results of a survey of 200 movie rental customers:
> 15%
> 10%
> 46%
science fiction > 29%

how many customers prefer horror movies?

To work this out, you do 46% of 200, as there are 200 customers asked, and the question asks for the number of customers that prefer horror movies, which is 46%. 

You can work that out by doing (200 × 46) ÷ 100 = 92. 

92 customers prefer horror movies. 

92 people prefer horror. Explaination: 200 people, and %s are always out of 100. For 200, you can just multiply the number by two to find how many people. Here's the other ones just in case you need these: Horror: 92 people Comedy: 30 people Mystery: 20 people Science fiction: 58 people To make sure you have the right answer, add up all the people to see if you get 200. If you get 200 (I checked, and I did) then you have the right answer.