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Grade 7 Math · Percent Increase and Decrease

Grade 7 Percent Increase and Decrease Practice Test

Build Grade 7 Math skills with five 10-question practice tests on percent change, increase and decrease multipliers, discounts, tax, salaries, populations, successive changes, and original values.

Percent Increase and Decrease Practice Tests

These Grade 7 Math practice tests help students calculate percent change and apply percentage multipliers. Students work with increases, decreases, discounts, tax, salaries, populations, original values, successive changes, and real-world price and budget situations.

Skills covered

  • Calculating percent increase and percent decrease from original and new values
  • Using increase multipliers such as 1.15 and decrease multipliers such as 0.80
  • Finding a new value after a percentage increase or decrease
  • Finding the original value from a final value and a percentage change
  • Applying discounts, sales tax, salary changes, population changes, and budgets
  • Analyzing successive percentage changes and explaining why they are not always additive

How to use these practice tests

Use the original amount as the denominator when calculating percent change. For an increase, multiply by (1+r); for a decrease, multiply by (1-r), where (r) is the decimal rate. For successive changes, apply each multiplier in order and keep the intermediate value before applying the next change.

For more Grade 7 Math practice, return to the Grade 7 Math category.

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Grade 7 Percent Increase and Decrease Practice Tests

A 10-question Grade 7 Math practice test on percent increase, percent decrease, multipliers, discounts, tax, salaries, populations, successive changes, and finding original values.

Identify the original value, calculate the change relative to that original, use increase or decrease multipliers, and check each result with estimation.

10 Questions
0/10 Questions0 %
Correct 0
Incorrect 0
Unanswered 10
1. QuestionMultiple choice

A $40 item increases in price by 25%25\%. What is the new price?

Please select an answer first.

Correct answer: A

The correct answer is $50.

  1. Identify the original and new values: Determine which value is the original amount, which is the new amount, and whether the change is an increase or a decrease.
  2. Apply the percent relationship: The increase is 0.25⋅40=100.25\cdot40=10 dollars, so the new price is $50.
  3. Check the result: Use the original value as the denominator for percent change and verify the direction and size of the change.

The increase is 0.25⋅40=100.25\cdot40=10 dollars, so the new price is $50.

2. QuestionMultiple choice

An $80 item is discounted by 15%15\%. What is the sale price?

Please select an answer first.

Correct answer: B

The correct answer is $68.

  1. Identify the original and new values: Determine which value is the original amount, which is the new amount, and whether the change is an increase or a decrease.
  2. Apply the percent relationship: The discount is 0.15⋅80=120.15\cdot80=12 dollars, so 80−12=6880-12=68 dollars.
  3. Check the result: Use the original value as the denominator for percent change and verify the direction and size of the change.

The discount is 0.15⋅80=120.15\cdot80=12 dollars, so 80−12=6880-12=68 dollars.

3. QuestionMultiple choice

A $120 purchase has an 8%8\% tax. What is the total cost?

Please select an answer first.

Correct answer: C

The correct answer is $129.60.

  1. Identify the original and new values: Determine which value is the original amount, which is the new amount, and whether the change is an increase or a decrease.
  2. Apply the percent relationship: The tax is 0.08⋅120=9.600.08\cdot120=9.60 dollars, so the total is $129.60.
  3. Check the result: Use the original value as the denominator for percent change and verify the direction and size of the change.

The tax is 0.08⋅120=9.600.08\cdot120=9.60 dollars, so the total is $129.60.

4. QuestionMultiple choice

A $250 item is marked down by 30%30\%. What is the sale price?

Please select an answer first.

Correct answer: D

The correct answer is $175.

  1. Identify the original and new values: Determine which value is the original amount, which is the new amount, and whether the change is an increase or a decrease.
  2. Apply the percent relationship: The discount is 0.30⋅250=750.30\cdot250=75 dollars, so 250−75=175250-75=175 dollars.
  3. Check the result: Use the original value as the denominator for percent change and verify the direction and size of the change.

The discount is 0.30⋅250=750.30\cdot250=75 dollars, so 250−75=175250-75=175 dollars.

5. QuestionMultiple choice

A salary of $2,400 increases by 5%5\%. What is the new salary?

Please select an answer first.

Correct answer: A

The correct answer is $2,520.

  1. Identify the original and new values: Determine which value is the original amount, which is the new amount, and whether the change is an increase or a decrease.
  2. Apply the percent relationship: The increase is 0.05⋅2400=1200.05\cdot2400=120 dollars, so the new salary is $2,520.
  3. Check the result: Use the original value as the denominator for percent change and verify the direction and size of the change.

The increase is 0.05⋅2400=1200.05\cdot2400=120 dollars, so the new salary is $2,520.

6. QuestionMultiple choice

A $64 price decreases by 12.5%12.5\%. What is the new price?

Please select an answer first.

Correct answer: B

The correct answer is $56.

  1. Identify the original and new values: Determine which value is the original amount, which is the new amount, and whether the change is an increase or a decrease.
  2. Apply the percent relationship: The decrease is 0.125⋅64=80.125\cdot64=8 dollars, so 64−8=5664-8=56 dollars.
  3. Check the result: Use the original value as the denominator for percent change and verify the direction and size of the change.

The decrease is 0.125⋅64=80.125\cdot64=8 dollars, so 64−8=5664-8=56 dollars.

7. QuestionMultiple choice

A $48 bill increases by 20%20\%. What is the new total?

Please select an answer first.

Correct answer: C

The correct answer is $57.60.

  1. Identify the original and new values: Determine which value is the original amount, which is the new amount, and whether the change is an increase or a decrease.
  2. Apply the percent relationship: The increase is 0.20⋅48=9.600.20\cdot48=9.60 dollars, so the total is $57.60.
  3. Check the result: Use the original value as the denominator for percent change and verify the direction and size of the change.

The increase is 0.20⋅48=9.600.20\cdot48=9.60 dollars, so the total is $57.60.

8. QuestionMultiple choice

A $90 item is discounted by 20%20\%. What is the final price?

Please select an answer first.

Correct answer: D

The correct answer is $72.

  1. Identify the original and new values: Determine which value is the original amount, which is the new amount, and whether the change is an increase or a decrease.
  2. Apply the percent relationship: The discount is 0.20⋅90=180.20\cdot90=18 dollars, so 90−18=7290-18=72 dollars.
  3. Check the result: Use the original value as the denominator for percent change and verify the direction and size of the change.

The discount is 0.20⋅90=180.20\cdot90=18 dollars, so 90−18=7290-18=72 dollars.

9. QuestionMultiple choice

An item costs $63 after a 30%30\% discount. What was its original price?

Please select an answer first.

Correct answer: A

The correct answer is $90.

  1. Identify the original and new values: Determine which value is the original amount, which is the new amount, and whether the change is an increase or a decrease.
  2. Apply the percent relationship: The sale price is 70%70\% of the original, so 63÷0.70=9063\div0.70=90 dollars.
  3. Check the result: Use the original value as the denominator for percent change and verify the direction and size of the change.

The sale price is 70%70\% of the original, so 63÷0.70=9063\div0.70=90 dollars.

10. QuestionMultiple choice

A value is $132 after a 10%10\% increase. What was the original value?

Please select an answer first.

Correct answer: B

The correct answer is $120.

  1. Identify the original and new values: Determine which value is the original amount, which is the new amount, and whether the change is an increase or a decrease.
  2. Apply the percent relationship: The final value is 110%110\% of the original, so 132÷1.10=120132\div1.10=120 dollars.
  3. Check the result: Use the original value as the denominator for percent change and verify the direction and size of the change.

The final value is 110%110\% of the original, so 132÷1.10=120132\div1.10=120 dollars.

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Frequently asked questions about Grade 7 Percent Increase and Decrease

What topics are covered?

The page covers percent increase, percent decrease, original and new values, multipliers, discounts, tax, salaries, populations, budgets, and successive percentage changes.

What value should be used for percent change?

Use the original value as the denominator: change divided by original, multiplied by 100 percent.

How many questions are on this page?

The page includes five mini tests with 10 questions each, for 50 Grade 7 Percent Increase and Decrease questions in total.