Percentage Increase and Decrease (VCE SSCE General Mathematics): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What value must always be used as the baseline for calculating percentage changes?
What value must always be used as the baseline for calculating percentage changes?
The original quantity
When using the multiplier method for a 15% increase, what % of the original do you calculate?
When using the multiplier method for a 15% increase, what % of the original do you calculate?
115%
When using the multiplier method for a 20% decrease, what % of the original do you calculate?
When using the multiplier method for a 20% decrease, what % of the original do you calculate?
80%
What is 200 USD increased by 10% using the multiplier method?
What is 200 USD increased by 10% using the multiplier method?
220 USD
What is 50 km decreased by 30% using the multiplier method?
What is 50 km decreased by 30% using the multiplier method?
35 km
What does a discount represent in percentage calculations?
What does a discount represent in percentage calculations?
A percentage decrease on prices
What formula finds percentage change when you know both the original and new values?
What formula finds percentage change when you know both the original and new values?
A value increases from 40 to 50. What is the percentage increase?
A value increases from 40 to 50. What is the percentage increase?
25%
An item costing 80 USD is on sale for 64 USD. What is the percentage discount?
An item costing 80 USD is on sale for 64 USD. What is the percentage discount?
20%
What is the sale price of a 120 USD item with a 25% discount using the multiplier method?
What is the sale price of a 120 USD item with a 25% discount using the multiplier method?
90 USD