Understanding how to calculate percentages is essential in daily life—whether you’re shopping, budgeting, studying, or running a business. In this blog, we’ll break down six types of percentage calculators available on our website, explain how to do each calculation manually, and show you the corresponding Excel formula if you prefer spreadsheets.
Let’s dive in!
1. Basic Percentage Calculator
Use this to find what percentage one number is of another.
Manual Formula:
(Part ÷ Total) × 100
Example:
If you got 45 marks out of 60: (45 ÷ 60) × 100 = 75%
Excel Formula:
=A1/B1*100 (Assuming A1 = part, B1 = total)
2. Percentage Increase Calculator
Calculate the percent change between two numbers—ideal for prices, salaries, or scores.
Manual Formula:
((New – Old) ÷ Old) × 100
Example:
From ₹500 to ₹650: ((650 – 500) ÷ 500) × 100 = 30%
Excel Formula:
=(B1-A1)/A1*100 (A1 = old, B1 = new)
3. Discount Calculator
Input the original price and discount percentage to instantly find your savings and final price. Perfect for calculating shopping deals, seasonal sales, and retail discounts. Use this free discount calculator to shop and sell smarter every time!
Manual Formula:
Discount = (Discount% × Original Price) ÷ 100
Final Price = Original Price – Discount
Excel Formula:
=A1-(A1*B1/100) (A1 = price, B1 = discount %)
4. Margin Calculator
Find your profit margin based on cost and selling price. Essential for business owners, marketers, and resellers.
Manual Formula:
Margin (%) = ((Selling Price – Cost Price) ÷ Selling Price) × 100
Excel Formula:
=(B1-A1)/B1*100 (A1 = cost, B1 = selling price)
5. Markup Calculator
Calculate how much you should mark up a product over its cost to achieve your desired selling price.
Manual Formula:
Markup (%) = ((Selling Price – Cost Price) ÷ Cost Price) × 100
Excel Formula:
=(B1-A1)/A1*100 (A1 = cost, B1 = selling price)
6. Final Grade Calculator
Use this tool to find out what grade you need on your final exam to reach your target course grade.
Manual Formula:
Required Final = (Target Grade – (Current Grade × Weight of Current)) ÷ Weight of Final
Example:
Target: 90%, Current: 85%, Final Weight: 40%
Required Final = (90 – (85×0.6)) ÷ 0.4 = 97.5%
Excel Formula:
=(Target-(Current*WeightCurrent))/(WeightFinal)
Try these Calculators Online
Now that you understand how they work, make your life easier with our free tools:
Access our online tools
Use these powerful tools anytime for quick, accurate answers with our free percentage calculator online!
I have recently started a web site, the info you offer on this site has helped me greatly. Thank you for all of your time & work. “A physicist is an atom’s way of knowing about atoms.” by George Wald.