What is 9% of 100?
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Result
9
9% of 100 = 9
Mathematical Formula
Detailed Explanation
Step 1: Understanding Percentages
9% means 9 parts out of 100. To convert a percentage to a decimal, we divide by 100: 9% = 0.09
Step 2: Multiplication
We multiply our number (100) by the decimal form of the percentage (0.09):
100 × 0.09 = 9
Step 3: Real-World Context
This means that 9% or 0.09 of 100 is 9. In other words, if you take 9% of 100, you get 9.
Common Use Cases
Discounts
When a $100 product has a 9% discount, you save $9 and pay $91.
Tips
If you want to leave a 9% tip on a $100 meal, you would leave $9 as the tip.
Taxes
When 9% sales tax is added to a $100 purchase, $9 is added for tax, making the total $109.
Proportions
If 9% of students in a class are boys and there are 100 students total, that means there are 9 boys.
Finance
If you invest $100 and earn 9% annual interest, you'll receive $9 in interest for the year.
Education
If a student answers 9% of questions correctly on a 100-question test, they answered 9 questions correctly.
Business
If 9% of your monthly revenue goes to operating expenses and you earn $100, you spend $9 on operations.
Healthcare
If a hospital reduces infections by 9% from 100 cases monthly, they now have only 91 cases per month.