Increasing and Decreasing Percentages
This worksheet helps Grade 9 students practice calculating percentage increases and decreases in various real-world scenarios.
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Increasing and Decreasing Percentages
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Read each question carefully and calculate the new value after the percentage increase or decrease. Show your work where applicable.
1. To find a percentage increase, you add the percentage of the original amount to the amount.
2. To find a percentage decrease, you subtract the percentage of the original amount from the amount.
3. A 20% increase on $100 would result in a new amount of $ .
4. A 10% decrease on $50 would result in a new amount of $ .
1. A store increases the price of a shirt from $25 to $30. Calculate the percentage increase.
2. The population of a town grew from 12,000 to 15,000 in a year. What was the percentage increase in population?
1. A car's value depreciated from $18,000 to $15,300 in one year. Calculate the percentage decrease in value.
2. During a sale, a laptop originally priced at $800 is sold for $680. What is the percentage discount?
1. A jacket costs $60. If its price increases by 15%, what is the new price?
$69
$51
$75
$60
1. A 50% increase followed by a 50% decrease results in the original amount.
True
False