Percentage increase helps you understand how much a value has grown compared to its original value. It is widely used in salary growth, business profits, exam marks, and daily calculations.
If you're new to percentages, you can first learn how to calculate percentage step by step.
What is Percentage Increase?
Percentage increase shows the change in value as a percentage of the original amount.
Percentage Increase Formula
Example 1: Simple Increase
Old price = ₹100 New price = ₹150
Increase = 150 – 100 = 50
Percentage increase = (50 / 100) × 100 = 50%
Example 2: Salary Increase
Old salary = ₹20,000 New salary = ₹25,000
Increase = ₹5,000
Percentage increase = (5000 / 20000) × 100 = 25%
Example 3: Marks Improvement
Old marks = 60 New marks = 75
Increase = 15
Percentage increase = (15 / 60) × 100 = 25%
Percentage Increase vs Percentage Decrease
Percentage increase shows growth, while percentage decrease shows reduction. Both are calculated using similar formulas but used in different situations.
Quick Comparison Table
| Old Value | New Value | Increase |
|---|---|---|
| 100 | 150 | 50% |
| 200 | 250 | 25% |
| 500 | 600 | 20% |
How to Calculate Percentage Increase Step-by-Step
- Find the difference (New – Old)
- Divide by original value
- Multiply by 100
Real-Life Uses of Percentage Increase
- Salary growth
- Stock market returns
- Business profit
- Population growth
Common Mistakes to Avoid
- Using wrong base value
- Forgetting to multiply by 100
- Confusing increase with decrease
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