Percentage of a Percentage Calculator

Ever had to calculate a bonus that is a percentage of a commission, or figure out a tax rate applied to a subtotal? That is “percentage of a percentage.” This is not a simple addition. The Percentage of a Percentage calculator does the compound math instantly. It tells you the single, true combined percentage and the resulting amount, if you provide a starting value.

Percentage of a Percentage Calculator

Percentage of a Percentage

Calculate compound percentages 🔢

💡 What Does This Calculate?

This calculator finds a percentage of another percentage. For example, if you want 20% of 50%, the result is 10%.

With a base value, it shows the actual amount. For instance, 20% of 50% of ₦100 equals ₦10.

Example: A shop offers 20% off during a sale, then an additional 10% discount for members. What’s the total discount? Answer: 28% off (not 30%!)

🤯 Stop Double-Counting: Percentage of a Percentage

How to Use the Calculator

This tool has three input fields, but only two are strictly necessary. The output adjusts based on what you enter.

Step 1: Enter the Base Value (Optional)

  • Base Value: Enter the total starting amount, such as your total sales volume or the full price of an item.
    • Tip: If you only want the combined percentage result (e.g., finding 10% of 50% equals 5%), skip this field entirely.
    • Relatable Example: Your total monthly sales are $5,000. Enter 5000.
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Step 2: Input the Percentages

  • First Percentage (%): Enter the first percentage value (e.g., 10).
    • Example: You get a 20% commission on sales. Enter 20.
  • Second Percentage (%): Enter the second percentage value (e.g., 50).
    • Example: Your bonus is 10% of your commission. Enter 10.

Step 3: View the True Result

  1. Click the Calculate Result button.
  2. The yellow result card shows the true outcome.
  3. The detailed breakdown is key:
    • Combined Percentage: This shows the single percentage that represents the combination (e.g., 20% of 10% is 2%).
    • Final Amount: If you entered a base value, this shows the final money amount (e.g., 2% of $5,000 is $100.00).

Exactly! That’s so true: you calculate 20% of 10% by multiplying them, not adding them to get 30%.

Would you like to find the combined percentage of 15% of 30%?