Calculate Percentage of a Number
Find what percentage of a number equals another number
Result
0
Enter values to see calculation
How it works:
- Enter the percentage you want to calculate
- Enter the base number
- The result will be calculated automatically
FORMULA
Result = (Percentage ÷ 100) × Number
What Percentage Is One Number of Another
Calculate what percentage one number represents of another
Result
0%
Enter values to see calculation
How it works:
- Enter the first number (part)
- Enter the second number (whole)
- Get the percentage automatically
FORMULA
Percentage = (First ÷ Second) × 100
Calculate Percentage Increase/Decrease
Find the percentage change between two numbers
Result
+0%
INCREASE
Enter values to see calculation
How it works:
- Enter the original value
- Enter the new value
- See the percentage change (+ or -)
FORMULA
Change = ((New - Original) ÷ Original) × 100
Find Original Number
Calculate the original number when you know the percentage and result
Original Number
0
Enter values to see calculation
How it works:
- Enter the known percentage
- Enter the result value
- Find the original number
FORMULA
Original = (Result ÷ Percentage) × 100
Common Examples
Sales Tax
Calculate 8.5% of $150
$12.75
Discount
20% off $80 item
$16 savings
Tip Calculator
15% tip on $45 bill
$6.75
Grade Score
85 out of 100 points
85%