Explore featured tools How-to-sheets you can use to give your students the confidence to use mathematics across learning areas and in their day-to-day lives. Calculating mean, median and mode Mean The ‘mean’ is the total of the numbers divided by how many numbers there General resources Calculating percentages or ratios Introduction to ratios Ratios are used to compare a value to an ‘original’ or General resources Calculating percentage change Percentage change definition/calculation The ratio calculation in Calculating General resources Calculating income tax Individual income tax rates vary depending on who the payee is. Australian General resources Making an Excel spreadsheet You can set up a spreadsheet to perform repeated calculations. This is useful General resources Building charts and tables Tables and charts serve as visual representations of datasets.Tables present General resources Calculating GST at 10 percent The goods and services tax (GST) is a broad-based tax of 10% on most goods and General resources Making an Excel spreadsheet using GST as an example You can set up a spreadsheet to perform repeated calculations. This is useful General resources Tiered pricing and commission Tiered pricing and percentage systems Businesses which involve sales (selling General resources Calculating income Image: Table showing hourly rates of pay for permanent retail employees. Level General resources Building charts and tables Tables and charts serve as visual representations of datasets.Tables present General resources Load More