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Calculating a percentage might seem tricky at first, but it's actually quite simple! Let's learn how to do it step by step.
Think of a percentage as a way to show parts of a whole. It's like dividing something into smaller pieces to understand how much each part is.
1% is 1 hundredth of the whole.
Imagine you have 100 LEGO blocks. 1% would be like having just 1 of those blocks.
If you have 500 LEGO blocks. 1% would be like having just 5 of those blocks.
Let's say we want to find out what 10% of a number is. We can turn that percentage into a fraction. A fraction is just a way to represent a part of a whole.
To find out what 10% of a number is, you multiply that number by the fraction we just made (10/100).
A% of B = A⁄100 × B
e.g. 3% of 200 = 3⁄100 × 200 = 6
Formula is =(B2/100)*A2, where B2 is the number, and A2 is the percentage.
If you want to find a specific percentage of a number, you can easily do this with Windows Calculator. Let’s walk through an example where we calculate 20% of 250.
Press
, type , and press .This is the number you want to find a percentage of.
Now enter the percentage you want to calculate.
Windows Calculator will immediately show the result:
.This means that 20% of 250 is 50.
Scenario: You need to calculate 15% of $200.
Calculation: Find the percentage value.
Formula: Percentage of a Number = (Percentage / 100) × Number
Percentage of a Number = (15 / 100) × $200
Percentage of a Number = 0.15 × $200 = $30
Result: 15% of $200 is $30.
Scenario: Calculate 25% of 80.
Calculation: Find the percentage value.
Formula: Percentage of a Number = (Percentage / 100) × Number
Percentage of a Number = (25 / 100) × 80
Percentage of a Number = 0.25 × 80 = 20
Result: 25% of 80 is 20.
Scenario: Determine 10% of 500.
Calculation: Find the percentage value.
Formula: Percentage of a Number = (Percentage / 100) × Number
Percentage of a Number = (10 / 100) × 500
Percentage of a Number = 0.10 × 500 = 50
Result: 10% of 500 is 50.
Scenario: Calculate 40% of 150.
Calculation: Find the percentage value.
Formula: Percentage of a Number = (Percentage / 100) × Number
Percentage of a Number = (40 / 100) × 150
Percentage of a Number = 0.40 × 150 = 60
Result: 40% of 150 is 60.
Scenario: Determine 5% of 1,000.
Calculation: Find the percentage value.
Formula: Percentage of a Number = (Percentage / 100) × Number
Percentage of a Number = (5 / 100) × 1,000
Percentage of a Number = 0.05 × 1,000 = 50
Result: 5% of 1,000 is 50.
The table below shows commonly calculated percentages of various numbers. You can use these as a learning reference or to verify your calculator results.
Percent (%) | Number | Result (Percentage of the Number) |
---|---|---|
10% | 100 | 10 |
20% | 150 | 30 |
25% | 80 | 20 |
5% | 60 | 3 |
15% | 200 | 30 |
30% | 90 | 27 |
40% | 75 | 30 |
50% | 300 | 150 |
60% | 120 | 72 |
70% | 50 | 35 |
80% | 90 | 72 |
90% | 40 | 36 |
100% | 250 | 250 |
12% | 500 | 60 |
18% | 200 | 36 |
22% | 180 | 39.6 |
8% | 350 | 28 |
2% | 600 | 12 |
33% | 150 | 49.5 |
66% | 90 | 59.4 |