What is percentage increase and decrease?
Percentage change involves increasing or decreasing a quantity as a percentage of the original amount of the quantity. This is often used in retail stores selling products that need to increase the price of a product in order to make a profit or decrease the price of a product if it is on sale. This post will help you with percentage increase and decrease in Prelim Standard Math.
How do you increase or decrease the value of a product?
The video below explains how to complete percentage increase and decrease questions.
What happens when you increase and then decrease a price by the same percentage?
The following video explains why you get a completely different price when you increase the price of a product and then decrease it by the same percentage but get a whole new number.