Percent Change Error and Sales Tax

Find the percent of change. Round to the nearest tenth of a percent.

From $18.50 to $22.10

• 19.5% increase

• 16.3%

• 16.2%

• 19.6%

Find the percent error. Round to the nearest tenth of a percent.

Estimated length: 32 in.

Actual length: 54 in.

• 27.4%

• 70.4%

• 41.8%

• 40.7%

An Ipad that costs $500 is on sale for 15% off. Then has a 6% tax. What's the final price?

• $450.50

• $521

• $491

• $400

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? 

• 35%

• 25%

• 30%

• 20%

Find the percent error. Round to the nearest tenth of a percent.

Actual speed: 38 mph

Estimated speed: 35 mph

• 8.1%

• 0.79%

• 7.9%

• 6.8%

Alex buys an antique car for $45,800, restores it, and then sells it for $61,830. Find the percent of change. Is it an increase or a decrease?

• 35% increase

• 35% decrease

• 65% increase

• 65% decrease

A shoe sales associate earned $300 in August. In September she earned 8% more than she did in August. How much did she earn in September?

• $308

• $324

• $200

• $380

Find the sales tax only. $199.95 ipod; 9% tax

• $ 17.99

• $ 217.95

• $18.00

• $179.90

Find the total cost.  $ 990 T.V.; 9% tax 

• $ 89.10

• $ 900.90

• $ 1,079.10

• Free

A Toyota Sienna sells for $41,899.  A year later, the value is $36,469.  What is the percent change to the nearest tenth of a percent?

• 12% increase

• 13% decrease

• 112% decrease

• 113% increase