Calculation of percentages and variations

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Instructions - Detailed Information - Percentage Calculation

1 The Introduction

The percentage calculator is a useful tool for all kinds of calculations related to the

Available Calculations

  • Find the percentage: Calculate what percentage of one number is another number
  • Find Number after Change: Calculate the final value of a number after increasing or decreasing by a certain percentage
  • Find What Percentage is a Number: Calculate the percentage that one number represents in relation to another
  • Number by percentage: Calculate a number by knowing its percentage on a whole.
  • The percentage of change: Calculate the percentage of change between initial and final price
  • Find the original number after Change: Calculate the initial value by knowing the final value and the rate of change

How to Use the Computer

  • Select the type of calculation you want to perform from the menu.
  • Fill out the required fields with the values you know.
  • As you fill in the fields, the computer will automatically update the result.
  • You can change the calculation type at any time to perform different

Examples of calculations

  • Example of 1: 25 is 50% of 50
  • Example of 2: 100 increased by 20% to 120
  • Example of 3: 75 is 75% of 100
  • Example of 4: 30 results as 30% of 100
  • Example of 5: The 80 that became 100 changed by 25%
  • Example of 6: 120 is a result of an increase of 20% from the original number 100

Applications of percentage calculations

  • Economic calculations (deductions, price increases, interest rates)
  • Statistical analysis and data comparison
  • Business analysis (profit, loss and margin)
  • Educational applications (ratings, statistics)
  • Sales and Procurement Calculations
  • Budget Analysis and Financial Planning

Advice & Useful Information

  • For increase, the rate of change is positive (e.g. +20%)
  • For reduction, the rate of change is negative (e.g. -15%)
  • A 100% increase means a doubling of the initial price.
  • A 100% reduction rate means zero of the initial price
  • All results are rounded to two decimal digits for better readability.