The basics of percentages
Before we dive into the question at hand, let’s first review some basics about percentages. A percentage is a way to express a portion of a whole as a fraction of 100. For example, 25% means 25 out of 100 or 0.25 as a decimal.
Calculating 25% of 80
Now, let’s get to the question of what is 25% of 80. To calculate this, we need to multiply 80 by 25% or 0.25.
80 x 0.25 = 20
So, 25% of 80 is 20.
Why is knowing percentages important?
Percentages are a common way to express information in many areas, such as finance, statistics, and science. Knowing how to calculate percentages can help you make informed decisions and understand data better.
How to calculate percentages
To calculate a percentage, you need to follow these steps:
- Divide the part by the whole.
- Multiply the result by 100.
For example, if you want to find out what percentage of 80 is 20, you would divide 20 by 80 and multiply the result by 100.
(20/80) x 100 = 25%
So, 20 is 25% of 80.
Other examples of calculating percentages
Let’s look at some other examples of calculating percentages.
What is 10% of 50?
50 x 0.10 = 5
So, 10% of 50 is 5.
What is 75% of 200?
200 x 0.75 = 150
So, 75% of 200 is 150.
Using percentages in real life
Percentages are used in many real-life situations, such as calculating discounts, interest rates, and taxes. Knowing how to calculate percentages can help you save money and make better financial decisions.
Common percentage terms
Here are some common percentage terms you may come across:
- Gross profit margin: the percentage of revenue that exceeds the cost of goods sold
- Net profit margin: the percentage of revenue that remains after all expenses have been paid
- Interest rate: the percentage of the loan amount charged as interest
- Tax rate: the percentage of income that is paid in taxes
Conclusion
In conclusion, calculating percentages is an essential skill that can be used in many areas of life. To calculate 25% of 80, we multiply 80 by 25% or 0.25, which gives us 20. Knowing how to calculate percentages can help you make informed decisions and understand data better.