Percent Increase & Decrease
Percent Increase/Decrease
Percentages of 75
T-Bird Nation
100

A shirt originally costs $40. It is now on sale for $30. What is the percent decrease in price?

$40 → $30
Percent decrease = 40−30/40×100=25%

100

Seini bought a belt from Gucci for $450. There is a 7% tax rate where he lives, meaning the price will be increased by 7%. How much will he pay for the belt after tax?


Hint: $450 x 107% OR 

$450 x 7% = ? Then add your final answer to $450

$481.50

100

What is 10% of 75

7.5

100

What is our school mascots name?

Timmy

200

A school had 120 students last year. This year, it has 144 students. What is the percent increase in enrollment?

120 → 144 students
Percent increase = 144−120×100=20%

200

Bob left a 20% donation on a shirt that was $32. How much will the total meal cost with the tip?

Hint: You are increasing the cost of $32 by 20%

$38.40

200

What is 20% of 75

15

200

What is our vice principals name?

Mr. Trevino

300

A book’s price increased from $25 to $30. What is the percent increase?

$25 → $30
Percent increase = 30−25/25×100=20%

300

Billy went to a restaurant and spent $94. He decides to leave a 30% tip. What is his total after the tip? 


Hint: You are increasing the cost ($94) by 30%.

$122.20

300

What is 1% of 75?

.75

300

What is the site called that you use to leave class?

TBird Network

400

A mobile phone was priced at $600 but is now sold for $480. What is the percent decrease?


$600 → $480
Percent decrease = 600−480/600×100=20%

400

Karen's total bill was $40. The states tax rate is 6.8%. How much will the bill be after tax?


Hint: Increase the cost by 6.8%

$42.72

400

What is 0.1% of 75?

.075

400

What is the name of the park where the volleyball court is located?

Sanchez Park

500

A farmer harvested 200 kg of mangoes last season and 250 kg this season. What is the percent increase?

200 kg → 250 kg
Percent increase = 250−200/200×100=25%

500

Brianna went to dinner and the subtotal was $30. The public holiday surcharge rate is 5%. She wants to leave a 20% tip on the subtotal as well. What will the total cost be after tax and tip?

Hint: You have to increase her cost by 20% + 5%

$37.50 ($6 for tip, $1.50 for tax)

500

What is 0.5% of 75?

0.375

500

What presidents picture is displayed on the front of the school?
Daily Double

George Washington