Percentage Calculator
Easily calculate percentages, percentage changes, and find out what percent one number is of another.
1. What is X% of Y?
What is
% of
?
Answer: 0
0% of 0 = 02. X is what percent of Y? (Marks, Grades, or Actual vs. Target)
is what % of
?
Answer: 0.00%
3. Percentage Increase / Decrease
From
to
Answer: 0.00% Increase
How to Use the Percentage Calculator
This tool offers three common percentage calculations:
- What is X% of Y? - Useful for finding out discounts or tax amounts.
- X is what % of Y? - Excellent for calculating academic marks (like IGNOU percentages) or performance metrics.
- Percentage Change: - Perfect for calculating profit/loss or price inflation between two values over time.
Percentages are a fundamental part of daily life, from figuring out a tip at a restaurant to understanding interest rates on your loans.
Example
20% of 150 is 30; 30 is 20% of 150; and a value moving from 150 to 180 is a 20% increase.
Common Use Cases
- Calculating a discount or sales tax amount while shopping.
- Working out exam scores or grade percentages.
FAQs
How do I calculate percentage over or under a target?
Use calculator #2 below ("X is what % of Y?") with your actual value as X and your target value as Y. The result is actual-as-a-percentage-of-target: anything above 100% means you exceeded the target, and anything below 100% means you fell short. For example, actual sales of 120 against a target of 100 gives 120% — that's 20 percentage points over target.
What's the difference between percentage change and percentage points?
Percentage change measures relative change (e.g., 20% higher), while percentage points measure the raw difference between two percentages (e.g., going from 20% to 25% is a 5 percentage point change).