This is a whole lesson on Increasing and Decreasing by a Percentage. This is a classic exam question that involves different real-life contexts such as sales tax, sales, VAT, depreciation of cars, etc. The lesson focuses on questions without the use of the calculator and percentages 4 looks at using a calculator. This lesson is ready to go, with no prep required. This lesson is ready to go, with no prep required. It is also great for home learning. 23-slide presentation + ORIGINAL VIDEO CONTENT