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Percentages

1 Determine a specified percentage of a given amount. 2 Represent one amount as a percentage of another. 3 Compute percentage increases or decreases. 4 Perform calculations involving simple and compound interest, which may include scenarios with repeated percentage changes. Note that formulas will not be provided. 5 Execute calculations using reverse percentages, such as finding the original price when given the selling price and the percentage profit. Percentage calculations may involve: deposits, discounts, profit and loss (expressed as either a value or a percentage), earnings, and percentages exceeding 100%.

1

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10

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7

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46 min

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CambridgeIGCSEMathematicsExtended Number

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Percentages outcomes1 objectives
  • 1 Determine a specified percentage of a given amount. 2 Represent one amount as a percentage of another. 3 Compute percentage increases or decreases. 4 Perform calculations involving simple and compound interest, which may include scenarios with repeated percentage changes. Note that formulas will not be provided. 5 Execute calculations using reverse percentages, such as finding the original price when given the selling price and the percentage profit. Percentage calculations may involve: deposits, discounts, profit and loss (expressed as either a value or a percentage), earnings, and percentages exceeding 100%.

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