Percentage Calculator

Calculate percentages, percentage increase, decrease, discounts and more instantly.

Choose a calculation

Results update instantly as you type.

What is X% of Y?

For example 18 for 18%.

The number you are taking the percentage of.

Your percentage result

18% of 10,000

1,800

18% of 10,000 is 1,800.

  • 18%

    Percentage

  • 10,000

    Value

  • 1,800

    Result

    ₹1,800.00 if the value is in rupees

How to calculate percentage

Every percentage question comes back to one idea — a share out of one hundred. Finding a share uses value × rate ÷ 100, while measuring a change uses (new − original) ÷ original × 100. Discounts are the same maths applied to a price, and percentage difference swaps the original value for the average of the two numbers being compared.

Tax percentages follow the same rules but with fixed slabs. If you are adding or removing 5%, 12%, 18% or 28% GST from an invoice amount, the GST Calculator does the split into CGST, SGST and IGST for you.

What is a percentage?

A percentage expresses a quantity as parts per hundred. The symbol % simply means “divided by 100”, so 45% is the same as 45/100 or 0.45.

How to calculate a percentage?

Multiply the value by the percentage and divide by 100: value × rate ÷ 100. To go the other way, divide the part by the whole and multiply by 100.

How to calculate percentage increase?

Percentage increase = (new − original) ÷ original × 100. A salary moving from ₹40,000 to ₹46,000 is a 15% increase.

How to calculate percentage decrease?

Percentage decrease = (original − new) ÷ original × 100. A price falling from ₹2,500 to ₹2,000 is a 20% decrease.

How to calculate a discount?

Discount = price × discount rate ÷ 100, and final price = price − discount. Knowing both numbers makes it easy to compare offers quickly.

How to calculate percentage difference?

Percentage difference = |A − B| ÷ ((A + B) ÷ 2) × 100. Unlike percentage change it has no starting value, so comparing 100 and 120 gives 18.18% either way round.

Frequently asked questions

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