# Tickets to The Phantom of the Opera just lowered 15%. If the new price is $51.00, what was the original price?

##### 2 Answers

May 15, 2017

Then

#### Explanation:

Or:

May 15, 2017

#### Explanation:

Here we have an example of reverse percentage. You know the amount AFTER a change has happened, but we do not know the starting amount.

The starting amount represents

You can use direct proportion because we are comparing percents and amounts.

You could also have written the proportion in this form to get the same result: