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Basic Percentage Calculators
1. What is X% of Y?
What is
% of
?
Result:
30
Formula: (15 ÷ 100) × 200 = 30
2. X is what % of Y?
is what % of
?
Result:
20.00%
Formula: (30 ÷ 150) × 100 = 20%
3. X is Y% of what number?
is
% of what?
Result:
125
Formula: 25 ÷ (20 ÷ 100) = 125
Change & Difference
4. Percentage Increase / Decrease
Change:
+35.00%
Formula: ((135 – 100) ÷ 100) × 100 = 35%
5. Increase / Decrease Value by %
by
%
Result:
180
Formula: 150 × (1 + 0.20) = 180
6. Percentage Difference (2 Values)
Difference:
22.22%
Formula: |80 – 100| ÷ ((80 + 100) / 2) × 100 = 22.22%
7. Percentage Points Change
Abs Difference:
+2.50 pp
Relative % Change:
+50.00%
Finance & Business
8. Discount & Sale Price
You Save:
$21.25
Final Price:
$63.75
9. Reverse Discount (Original Price)
Money Saved:
$15.00
Original Price:
$75.00
10. Sales Tax / VAT (Add or Remove)
Tax Amount:
$12.00
Total Amount (Gross):
$132.00
Formula: Net ($120.00) + Tax (10% = $12.00) = $132.00
11. Profit Margin & Markup
Profit Margin:
33.33%
Markup:
50.00%
12. Sales Commission
Commission Earned:
$750.00
13. Interest Growth (Compound/Simple)
Simple Interest:
$6,750.00
Compound Total:
$7,012.76
14. Salary Pay Raise
+ Extra / Month:
+$433.33
New Annual Salary:
$70,200.00
Academic & Grades
15. Test Score & Grade Percentage
Grade Output:
(A)
84.00%
16. Weighted Grade Average
Weighted Average:
89.20%
Daily Tools & Math
17. Tip & Bill Splitter
Tip Total:
$21.60
Per Person:
$35.40
18. Fraction / Ratio to %
/
Percentage Equivalent:
37.50%
Calculation History
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