Calculate percentages quickly " % of a number, increase/decrease, and more
Percentage = (Part / Whole) A 100
For example: What is 20% of 500? Answer: (20/100) A 500 = 100
A percentage is a way of expressing a number as a fraction of 100. The word "percent" comes from the Latin per centum, meaning "by the hundred." Percentages are used everywhere " in discounts, exam scores, GST, interest rates, salary hikes, and data analysis.
Our calculator handles three common types of percentage problems: finding a percentage of a number, finding what percentage one number is of another, and calculating percentage change (increase or decrease).
Old salary: 40,000 | New salary: 46,000
Percentage Increase = [(46,000 40,000) 40,000] A 100
= [6,000 40,000] A 100 = 15% salary hike ✅
Percentage of marks = (Marks Obtained Total Marks) A 100. Example: Scored 450 out of 600 → (450 600) A 100 = 75%.
Discount Amount = (Discount% 100) A Original Price. Example: 30% off on 2,000 MRP → (30 100) A 2,000 = 600 discount → Final price = 1,400.
If the new value is higher than the old value, it is a percentage increase. If lower, it is a percentage decrease. Formula is the same: [(New Old) Old] A 100. A negative result = decrease.
GST (Goods and Services Tax) is applied as a percentage on the base price. For example, if GST rate is 18%, the tax on a 1,000 product = 18% of 1,000 = 180, so you pay 1,180. Use our GST Calculator for accurate GST splits.