Percentage Increase and Decrease Problems

The video tutorial covers the concepts of percent increases and decreases using equations. It explains how to calculate interest and depreciation, match equations to real-world scenarios, and represent percent changes using equations. The tutorial also includes practice problems and homework to reinforce the concepts.

What is the result of a 36% increase on an item priced at $100?

• $136.00

• $136.60

• $136.36

• $136

If a savings account increases by 6% annually, how much will $200 grow to after one year?

• $206

• $220

• $230

• $212

A car's value decreases by 15% in a year. If its initial value is $11,000, what is its value after one year?

• $9,700

• $9,500

• $9,350

• $9,650

If the water level in a reservoir is now 52 meters after a 23% increase, what was the initial depth?

• 42.28 meters

• 43.90 meters

• 44.72 meters

• 45.00 meters

A movie theater reduces its popcorn bag size by 20%. If the original size was 15 cups, what is the new size?

• 15 cups

• 14 cups

• 13 cups

• 12 cups

After a 25% discount, a t-shirt costs $12. What was its original price?

• $20

• $18

• $16

• $15

If a gas tank holds 12 gallons and another tank holds 50% more, how much does the second tank hold?

• 16 gallons

• 18 gallons

• 22 gallons

• 20 gallons

A pair of sneakers was bought for $120 and increased in price by 15%. What is the new price?

• $138

• $135

• $140

• $132

Elena's savings bond earned 105% interest. If the initial amount was $150, what is the total value now?

• $307.50

• $315.00

• $322.50

• $330.00

In a video game, Claire scored 50% more than Tyler. If Tyler scored 100 points, how many did Claire score?

• 125 points

• 130 points

• 150 points

• 160 points