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# Meaning of 109%

Percents are parts per hundred. So, how does this work for percents greater than 100% like 109%? Created by Sal Khan and Monterey Institute for Technology and Education.

## Want to join the conversation?

• Was this not 109 out of 200 because you used 2 squares of 100?
• I think I see why you're confused. As Sal points out, "percent" literally means "per hundred," and 109% literally therefore means 109 per hundred or 109/100. What this ratio also means is "part/whole" where the whole equals 100 and the part equals 109. But, in this case the part is actually greater than the whole, meaning you have one whole, 100/100, plus 9 more parts of that whole, or 9/100 (because 100/100 + 9/100 = 109/100).

I think you're confused because the people who created this question included two large squares *just for you to write your answer in.* That means that the whole is not really 200 small squares; they're just giving you 200 small squares for you to show your answer. Therefore when you shade in the 9 small squares in the second large square, you should pretend that the other 91 unshaded small squares don't exist. For example, if you were instead representing 109% with apples, you could place 100 apples in one pile and 9 apples in the other pile.
• Am i the only one who has not been here for 9 years??
• I haven't been here a year even
• so im using graphing paper would i need to use 2 pieces of graphing paper?
• Depends on how many squares are on your graph paper
• well because centi means hundered and thats why it says perCENT
• Wait, so how can this happen in real life? What would be a real-life example?
• If you are a store, you need to make a profit. If you buy something for 100 dollars, you have to sell if for more than it costs, so if you sell it for 109 dollars, it is 109% of the original costs.
• So, if you want to shade 159% then, you will have to take 200% and then shade 159 blocks...Right?
• Yes you need two wholes to shade 159%
• Was this not 109 out of 200 because you used 2 squares of 100
• I see you are confused, so it wouldn´t be 109/200 it would be 109/100. He used two squares because one square stood for 100% and the other stood for 9%.
Hope this helps. :)
• so basically you shade in a hundred (a whole) and the number of squares that are the number that makes it improper in the next square...
• How do you do 12 percent of 144 percent?