Financial Mathematics and Proportion · Number and Operations

Percentage Change and Profit

Calculating percentage profit and loss and determining original values after a percentage change.

Key Questions

  1. 1Why is a 10 percent increase followed by a 10 percent decrease not the same as the original price?
  2. 2How do businesses use percentage markups to ensure they cover costs and generate profit?
  3. 3What is the mathematical difference between a discount and a rebate?

ACARA Content Descriptions

AC9M9N04
Year: Year 9
Subject: Mathematics
Unit: Financial Mathematics and Proportion
Period: Number and Operations

Suggested Methodologies

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