Name: Date:

Question 1: A company sells £11,800 worth of headphones in one week. The following week they sell £7,906 worth of headphones. Calculate the percentage change in sales. | |||||||||

Question 2: In a sale a mobile phone is discounted from £450 to £238.50. Calculate the percentage decrease in price. | |||||||||

Question 3: £5,200 is invested in the stock market. 3 years later the investment is worth £104. Calculate the percentage change in the initial investment. | |||||||||

Question 4: Emily joins a company with a starting salary of £25,000. A year later this increases to £26,875. Calculate the percentage increase in salary. | |||||||||

Question 5: Olivia buys a new car that costs £19,500. A year later the car is worth £16,380. Calculate the depreciation rate. | |||||||||

Question 6: Jacob earns £2,650 per month before tax. After tax is deducted this drops to £2,252.50. Calculate the tax rate paid. | |||||||||

Question 7: The number of Year 10 and 11 students at QuickMaths Secondary School is shown below:
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Question 8: 44% more water is poured into a jug. Calculate the percentage decrease in water now required to reach the original level of water in the jug (to 1 d.p.). |

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# Answers

Question 1: 33% decrease |

Question 2: 47% decrease |

Question 3: 98% decrease |

Question 4: 7.5% increase |

Question 5: 16% depreciation rate |

Question 6: 15% tax rate |

Question 7: 2.2% to 1 d.p. |

Question 8: 30.6% to 1 d.p. |