If you know the concept of percentages and why they are used, then the next step is to understand how to find the value. Firstly, you must understand that to find a percentage of a value, and you need to have a value in the first place. For instance, you have a perfume, and it costs about $400, but the store places a discount of 30% on each item. So, how can we calculate the discounted price of perfume? First of all, we'll take the original price of $400 and multiply 30 to it. Now, as you recall, the percentage is the value per hundred of any given value. So, we'll divide the above equation with 100. 400 × 30 / 100 : 400 × 30 / 100 = 12%.
We really start to run away with this topic. Students are challenged by working to find percentages of fixed numbers. We use this skill all the time in our daily lives. Trying to determine that tip you should leave at the restaurant, just multiply it by 0.15. If you are feeling generous, multiply it by 0.2. It is pretty easy to find the percentage of any number. All you need to do is convert the percentage to a decimal, by moving the decimal point two places to the left. Then multiply that decimal value by the number itself. Your students will use these worksheets to learn how to calculate the given expression in order to determine the missing values, such as finding the larger number whose percentage value is provided.