Calculate percentages, percentage increase, percentage decrease, and percent difference quickly for everyday math, finance, discounts, grades, and comparisons.
Basic percentage:
(Percent ÷ 100) × value
Percentage change:
((New − Old) ÷ Old) × 100
Percent difference:
(|Value 1 − Value 2| ÷ average) × 100
This calculator helps with everyday percent math for savings, discounts, grades, growth, and comparisons.
Percentage calculations make it easier to understand portions, compare values, track increases or decreases, and evaluate relative changes over time.
They are commonly used in shopping, finance, school, business, and statistics.
Your result shows the percentage calculation based on the mode selected. Depending on the calculation, it may show the percentage amount, increase, decrease, or difference.
It also includes supporting values so you can understand exactly how the answer was calculated and apply it to real-world examples like discounts, markup, grades, and growth.
Divide the percentage by 100 and multiply it by the number.
Percentage change measures how much a value increases or decreases compared to the original value.
Percent difference compares two numbers using the average of the two values.
Use percent difference when comparing two values without treating one as the starting value.