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Question 1: A company sells £19,600 worth of shoes in one week. The following week they sell £29,988 worth of shoes. Calculate the percentage change in sales. | |||||||||

Question 2: In a sale a laptop is discounted from £880 to £272.80. Calculate the percentage decrease in price. | |||||||||

Question 3: £6,140 is invested in the stock market. 3 years later the investment is worth £4,113.80. Calculate the percentage change in the initial investment. | |||||||||

Question 4: Alfie joins a company with a starting salary of £26,500. A year later this increases to £27,692.50. Calculate the percentage increase in salary. | |||||||||

Question 5: Emily buys a new car that costs £21,000. A year later the car is worth £16,590. Calculate the depreciation rate. | |||||||||

Question 6: Becky earns £2,900 per month before tax. After tax is deducted this drops to £2,494. 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: 98% of the water in a jug is poured out. Calculate the percentage increase 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: 53% increase |

Question 2: 69% decrease |

Question 3: 33% decrease |

Question 4: 4.5% increase |

Question 5: 21% depreciation rate |

Question 6: 14% tax rate |

Question 7: 3.8% to 1 d.p. |

Question 8: 4,900.0% to 1 d.p. |