Testinar Grade 7 math

Percent Increase and Decrease

Students will build Grade 7 mastery of percent increase and decrease using models, equations, and test-style reasoning.

CH02-03 Percents and Financial Literacy
Name
Date
Score
____ / 8
Directions Solve each problem. Show your reasoning on the page or on separate paper. Check the answer key only after finishing.

  1. A pair of jeans originally costs \($50\). The store raises the price to \($60\). What is the percent increase?

    1. \(10\%\)
    2. \(16.7\%\)
    3. \(20\%\)
    4. \(30\%\)

  2. A tablet costs \($400\) and is discounted by \(25\%\). What is the new price?

    1. \($100\)
    2. \($375\)
    3. \($325\)
    4. \($300\)

  3. A restaurant bill was originally \($80\), and after a \(15\%\) increase, what is the new bill?

    1. \($95\)
    2. \($12\)
    3. \($88\)
    4. \($92\)

  4. The value of a car decreased from \($24\,000\) to \($18\,000\). What is the percent decrease?

    1. \(33\%\)
    2. \(20\%\)
    3. \(16.7\%\)
    4. \(25\%\)

  5. A student's test score improved from \(72\) to \(90\). What is the percent increase in the score?

    1. \(18\%\)
    2. \(20\%\)
    3. \(25\%\)
    4. \(80\%\)

  6. A store advertises "Save 30% on all winter coats!" If a coat originally costs \($120\), what is the sale price?

    1. \($36\)
    2. \($150\)
    3. \($90\)
    4. \($84\)

  7. The population of a town was \(5\,000\) and increased to \(6\,500\). What is the percent increase?

    1. \(15\%\)
    2. \(25\%\)
    3. \(30\%\)
    4. \(35\%\)

  8. A basketball player's scoring average was \(18\) points per game. After training, it increased to \(27\) points per game. What is the percent increase?

    1. \(33.3\%\)
    2. \(9\%\)
    3. \(66.7\%\)
    4. \(50\%\)
Teacher and parent reference

Answer key and explanations

  1. C. \(20\%\)

    Percent increase \(=\frac{\text{change}}{\text{original}}\times100\%=\frac{60-50}{50}\times100\%=20\%\).

  2. D. \($300\)

    Discount amount \(= 25\% \times $400 = 0.25 \times $400 = $100\). New price \(= $400 - $100 = $300\).

  3. D. \($92\)

    Increase \(= 15\% \times $80 = 0.15 \times $80 = $12\). New bill \(= $80 + $12 = $92\).

  4. D. \(25\%\)

    Percent decrease \(= \frac{24000-18000}{24000}\times100\% = \frac{6000}{24000}\times100\% = 25\%\).

  5. C. \(25\%\)

    Percent increase \(= \frac{90-72}{72}\times100\% = \frac{18}{72}\times100\% = 25\%\).

  6. D. \($84\)

    Savings \(= 30\% \times $120 = $36\). Sale price \(= $120 - $36 = $84\).

  7. C. \(30\%\)

    Percent increase \(= \frac{6500-5000}{5000}\times100\% = \frac{1500}{5000}\times100\% = 30\%\).

  8. D. \(50\%\)

    Percent increase \(= \frac{27-18}{18}\times100\% = \frac{9}{18}\times100\% = 50\%\).

Free Testinar sample Reviewed November 6, 2026 testinar.com
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