Percent Change Equations

Which equations represent a percent increase?

Which equations represent a percent decrease?

The original price of a bicycle was $425. Now it's on sale for $375. What percentage of the original price was the markdown?

Old Navy is having a sale for 30% off your total purchase. Deanna wants to calculate her total....Choose all that apply

Find the percent change.
Original amount:  16
New amount: 11

Last year, 2,376 people attended a summer music festival. This year, attendance was 2,950. What was the percent of change in attendance to the nearest whole percent?

What is the percent change when a quantity increases from 100 to 150?

Calculate the percent change from 50 to 75.

The value of a new iphone is $550, but after a year or two of use the value drops to $300. What is the percent change in the value of an iPhone?

(a)  

When finding percent change you must first (a)   ​ the new number from the ​ (b)   ​ number to find the amount of change.