Percentage Calculator




The QAM Percentage Calculator is a simple, transparent, and educational WordPress plugin designed to help learners, professionals, and non-technical users perform common percentage-based calculations accurately.

It removes confusion around percentage math by presenting results instantly and in easy-to-understand language. The tool is fully deterministic, does not store any data, and runs entirely on the user’s browser.

Important Notes for Users
  • Results are calculated instantly
  • No data is saved or shared
  • You can refresh the page to start again
  • All calculations are done locally in your browser
Tip for Learners

If you are unsure which option to use, ask yourself:

  • “Am I finding a part of a number?” → Use Option 1
  • “Am I comparing two numbers?” → Use Option 2
  • “Am I increasing or decreasing a value?” → Use Option 3 or 4
Option 1: Find a Percentage of a Number
(Use this when you want to calculate discounts, commissions, taxes, or allocations.)

(Example: What is 20% of 500?)

  1. Enter the percentage value in the first box (e.g., 20)

  2. Enter the base number in the second box (e.g., 500)

  3. Click Calculate

  4. The result will be displayed immediately below.

Option 2: Find What Percentage One Number Is of Another
(Use this to understand ratios, performance comparisons, or progress tracking.)

(Example: 50 is what % of 200?)

  1. Enter the smaller number (part) in the first box (e.g., 50)

  2. Enter the total number (whole) in the second box (e.g., 200)

  3. Click Calculate

  4. The tool will show the percentage value.

Option 3: Calculate Percentage Increase

(Use this for salary hikes, price increases, growth calculations, or forecasts.)

(Example: Increase 1,000 by 10%)

  1. Enter the original value (e.g., 1000)

  2. Enter the percentage increase (e.g., 10)

  3. Click Calculate

  4. The increased value will be displayed

Option 4: Calculate Percentage Decrease

(Use this for discounts, cost reductions, losses, or depreciation.)

(Example: Decrease 1,000 by 15%)

  1. Enter the original value (e.g., 1000)

  2. Enter the percentage decrease (e.g., 15)

  3. Click Calculate

  4. The reduced value will be displayed