Calculate Percent Increase and Decrease

The number of people signed up for a bus trip increased from 32 to 45. What is the percent increase? Round to the nearest percent.

The regular price of a scooter is $65.50. It is on sale for $52.40. What is the percent decrease from the regular price to the sale price of the scooter?

Find the percent increase. Round to the nearest percent.
From $5 to $8 

Find the percent increase from 13 friends to 14 friends.

Mrs. Ciampa had 27 students in her class last year and this year she had 30 students in her math class. What is the percent of change?

Find the percent decrease. Round to the nearest percent.
From $80 to $64 

Find the percent decrease from 90 points to 45 points.

Tickets to Disney World are $100. The price is going to increase on January 1. What is the percent of change if the cost increases to $120?

Find the percent change.
Original amount:  10
New amount: 12

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