Percentage increase and decrease

In this lesson, we will learn about increasing or decreasing an amount by a percentage determining and using a decimal multiplier.

In this lesson, we will learn about how to determine the proportional percentage increase or decrease between two values

In this lesson, we will learn how to calculate reverse percentages. We will learn how to take a given quantity as a percentage of a whole, and use it to calculate the value of the whole.

In this lesson, we will learn about calculating simple interest. We will investigate what the term means, and learn how to calculate it and solve problems.