$Ratio, proportion and rates of change: define percentage as ‘number of parts per hundred’; interpret percentages and percentage changes as a fraction or a decimal, and interpret these multiplicatively; express one quantity as a percentage of another; compare two quantities using percentages; work with percentages greater than 100%; solve problems involving percentage change, including percentage increase/decrease and original value problems, and simple interest including in financial mathematics(Pearson Edexcel GCSE) cover art$

Ratio, proportion and rates of change: define percentage as ‘number of parts per hundred’; interpret percentages and percentage changes as a fraction or a decimal, and interpret these multiplicatively; express one quantity as a percentage of another; compare two quantities using percentages; work with percentages greater than 100%; solve problems involving percentage change, including percentage increase/decrease and original value problems, and simple interest including in financial mathematics(Pearson Edexcel GCSE)

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Ratio, proportion and rates of change: define percentage as ‘number of parts per hundred’; interpret percentages and percentage changes as a fraction or a decimal, and interpret these multiplicatively; express one quantity as a percentage of another; compare two quantities using percentages; work with percentages greater than 100%; solve problems involving percentage change, including percentage increase/decrease and original value problems, and simple interest including in financial mathematics(Pearson Edexcel GCSE)

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A sale price, a pay rise and a savings balance all become easier once you identify the original 100%. Master percentage multipliers, reverse percentages and simple interest, then practise showing the methods and comparisons that earn GCSE Mathematics marks. Listen to this audio revision guide for Ratio, proportion and rates of change: define percentage as ‘number of parts per hundred’; interpret percentages and percentage changes as a fraction or a decimal, and interpret these multiplicatively; express one quantity as a percentage of another; compare two quantities using percentages; work with percentages greater than 100%; solve problems involving percentage change, including percentage increase/decrease and original value problems, and simple interest including in financial mathematics. Test your knowledge with interactive exam questions and flashcards at https://masterymind.co.uk/study-guides/mathematics-pearson edexcel-gcse-ratio-proportion-and-rates-of-change-define-percentage-as-number-of-parts-per-hundred-interpret-percentages-and-percentage-changes-as-a-fraction-or-a-decimal-and-inter.

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