Percentage Increase/Decrease Calculator

When dealing with numbers—whether it’s salary hikes, product prices, investments, or even weight changes—understanding percentage increase and decrease helps you see the bigger picture. Instead of struggling with formulas, the CalcMaster Percentage Increase Calculator instantly shows you how much something has grown or reduced.

No manual math. No confusion. Just a fast, free, and accurate tool right in your browser.

What is a Percentage Increase (or Decrease) Calculator?

A percentage increase calculator is an online tool that quickly calculates how much a value has grown or reduced in terms of percentage.

It works both ways:

• Percentage Increase: To check growth (like salary raises or price hikes).
• Percentage Decrease: To check reduction (like discounts or weight loss).

This tool is perfect for:

• Students learning percentages in math.
  
• Shoppers calculating discounts and savings.
  
• Business owners analyzing profit or expense changes.
  
• Fitness lovers tracking progress.
  
• Investors measuring growth in stocks or savings.

How Does the Percentage Increase Calculator Work?

The process is simple:

1. Enter the original value.
   
2. Enter the new value.
   
3. Click calculate.
   
4. Instantly see the percentage increase or decrease.

Formula Behind the Calculator

For percentage increase:

Percentage Increase=New Value – Old ValueOld Value×100\text{Percentage Increase} = \frac{\text{New Value – Old Value}}{\text{Old Value}} \times 100Percentage Increase=Old ValueNew Value – Old Value​×100

For percentage decrease:

Percentage Decrease=Old Value – New ValueOld Value×100\text{Percentage Decrease} = \frac{\text{Old Value – New Value}}{\text{Old Value}} \times 100Percentage Decrease=Old ValueOld Value – New Value​×100

Example 1: Percentage Increase

If your monthly rent goes from ₹10,000 to ₹12,000:

12,000–10,00010,000×100=20%\frac{12,000 – 10,000}{10,000} \times 100 = 20\%10,00012,000–10,000​×100=20%

So, your rent has increased by 20%.

Example 2: Percentage Decrease

If a product’s price drops from ₹2,000 to ₹1,600:

2,000–1,6002,000×100=20%\frac{2,000 – 1,600}{2,000} \times 100 = 20\%2,0002,000–1,600​×100=20%

So, the price has decreased by 20%.

Real-Life Scenarios Where You Can Use It

• Salary Hikes: Quickly calculate the percentage increase in your income.
  
• Shopping Discounts: See how much you’re really saving during a sale.
  
• Business Profits: Track revenue growth or expense reduction over months.
  
• Fitness Tracking: Measure your weight gain or weight loss percentage.
  
• Investments: Find out how much your stocks or savings have grown.

Why Use CalcMaster’s Percentage Increase Calculator?

 ✅ Instant Results: No pen, paper, or calculator needed.
✅ Accurate Formula: Works for both increase and decrease.
✅ Simple & Free: Just enter numbers and get answers.
✅ Mobile-Friendly: Use it on desktop, tablet, or smartphone.
✅ Everyday Use: Ideal for students, professionals, and personal use.

Extra Features That Make It Handy

• Works for both percentage increase & decrease.
  
• Clear button for quick reset.
  
• Error-free formula handling.
  
• Fast and reliable—no lag.
  
• Accessible anytime, anywhere.

Try the CalcMaster Percentage Increase Calculator Today

Whether you’re checking discounts, salary hikes, business growth, or personal progress, this tool makes percentage calculations quick, clear, and stress-free.

👉 Open the calculator now and make your math easier with CalcMaster.