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Method 4 Put the information in a ratio table and manipulate it to find 60%. Method 5 Use an equation to find the answer. The word "of" means "multiply". Method 6 Use a ratio table to set up a proportion. Then cross-multiply. Notice that all methods lead to the same answer: 24 students have green backpacks.   Example 2 In a room of 300 people, 12% of them are left-handed. How many people is this? The important thing to know about this problem is the 300 people represent the 100%. We are to find the number of people that 12% represents. There are many ways to solve this problem. Here are a few of the ways in no particular order. Make sure you understand at least a few of the methods. Method 1 Make a table and find that you can multiply the left column by 3 to get the right column. Method 2 Make a table and manipulate the rows until you get 12% in the left column, resulting in 36 in the right column. Method 3   Use an equation to find the part. The word "of" translates to "multiply". Method 4   Create a proportion using