Percentage Increase Decrease Word Problems

The population of a city increased from 500,000 to 600,000. Calculate the percentage increase.

• 10%

• 15%

• 20%

• 25%

The number of people signed up for a bus trip increased by 42%. If there were originally 36 people signed up, how many are now signed up for the bus trip?

• 52

• 51

• 15

• 78

The depth of a lake changes over time due to rainfall and evaporation. A few months ago, the depth was 55 m. Currently, the lake is 20% less deep. What is this year's depth?

Chairs are marked at $19.99 each, but if you buy more than 10 you will receive a discount of 15%. What is the price of 12 chairs

(Hint: find the total cost for 12 chairs and then apply the discount!)

• 239.88

• 203.90

• 239.73

• 203.89

Increase £350 by 12%...

• £392

• £308

• £42

• £408

Increase £520 by 26%...

• £655.20

• £790.40

• £384.80

• £582.40

Increase £300 by 82%...

• £546

• £246

• £384

• £525

Decrease £2200 by 8%...

• £2024

• £1980

• £2002

• £2376

Decrease £800 by 41%...

• £472

• £328

• £552

• £408

Paula bought an antique chest at a discount of 20%. If she received a discount of $98, calculate:

the marked price.