Suppose a medium pizza was eaten by you and your 7 friends. As you were still hungry, you ordered a large pizza this time. The large pizza is again cut into 8 equal parts. The percentage of full large pizza eaten by you is:
the same as that of the medium pizza
We can see this example as a type of pie chart. The medium pizza is a small pie chart, which is divided into 8 equal parts. So, the percentage of pizza eaten by you is 18x100. Similarly, in the large pizza a similar pie chart is depicted. This is again divided into 8 equal parts, the percentage of large pizza eaten by you is 18x100. So, the percentage of large pizza eaten by you will be same as percentage of medium pizza eaten by you.