Two percentage changes do not simply cancel
Model successive percentage changes with multipliers, distinguish simple and repeated growth and verify the base at every step.
Open the complete free lessonMathematics → SS3 → Proportional & Financial Modelling
Ratio, rates, percentages, finance and variation
FREE LESSON AVAILABLEModel multiplicative and financial change with correct base quantities and units
Start with the right foundation.
- SS1 variation + percentages
Curriculum context: WASSCE/NECO/JAMB cross-over · Nigeria / reusable
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Related topics and learning continuation.
Percentage of a quantity
Find percentages of quantities using benchmark and multiplicative strategies
Learn free: Percent of what? Find the base firstRatio, decimal, fraction & percentage conversion
Convert and compare ratio/FDP forms and solve proportional contexts flexibly.
Learn free: A ratio compares parts; a fraction names a wholeFraction meaning and equivalence
Represent fractions as numbers and generate/recognise equivalent fractions
Learn free: Different pieces, the same fractionSimple equations & word sentences
Solve simple linear equations and translate short word sentences into equations.
Learn free: Solve an equation without losing the balanceCartesian graphs & linear relationships
Plot ordered pairs, read axes/scale and interpret simple linear relationships on Cartesian graphs.
Learn free: A line tells a storyGet personal help with this topic.
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