Percentage Decrease Calculator

How to calculate percentage increase?

To calculate the percentage increase, you will need to follow three simple steps:

  1. Subtract the final value with the initial value
  2. Divide the amount by the initial value
  3. Multiply the result by 100% to get the percentage increase.

Note: If the result is negative, then you had a decrease, not an increase.

You can also use the free percent increase calculator by filling in the initial value and the end value.

 

Why is it important to calculate percent increases?

Calculating percentage increases helps identify how a value changed over time. Otherwise said it helps to compare increases in different time periods, estimate growth rates (yearly, monthly, daily, etc.), or evaluate changes from an old situation to a new one, such as comparing a new salary, cost, level, inflation, time, or rate to a previous amount.

 

Percentage increase formula

The formula to calculate the percentage increase is the following:

Percentage increase = (Final value – Initial value)/Initial value × 100

 

Example problems: Percentage increase

Example 1: Price increase calculation

Your favorite watch cost $250 last quarter. The watch now costs $300. What is the percentage increase in price for the price since the last quarter?

Let’s use the formula we’ve explained above.

Percentage increase (%)= (Final value - Initial value) /Initial value × 100

  • 275 - 250= 25
  • 25/250 = 0.1
  • 0.1 x 100 = 10% increase

This means that the price of the favorite watch has increased by 10% since last quarter.

Example 2: New salary vs old salary

Your salary used to be 48,000 yearly when you were hired. Now it's 52,000 yearly. What is the percentage increase of your salary?

Percentage increase (%)= (Final value - Initial value) /Initial value × 100

  • $52,000 - $48,000= $4,000
  • 4,000/48,000 = 0.083
  • 0.083 x 100 = 8.33% increase

Which means that your salary had incread with 8.33% since you were hired.

 

Percentage-Based Decrease Calculator

 

How to increase a number by a percentage?

There are times when you would like to calculate the increase of a number, cost, or distance by a specific percentage. In such situations, to increase the number by a percentage, use this formula:

Final value = Initial value + Initial value * Percentage(%) increase / 100

Alternative,

Final Value = Initial Value × (1 + Percentage Increase / 100)

 

Example problem: Increase by percent

Example 1: Garage cost increase by percent

A supplier said the cost for building a garage costs $2,000 today, yet from next year, due to the increase in building materials and labor costs, the cost to build the garage will be 20% higher. What will be the price of the garage next year?

Let's start with the formula mentioned above

Final Value = Initial Value × (1 + Percentage Increase / 100)

$2,000 x (1 + 20/100)

$2,000 x (1 + 0.20)

$2,000 x 1.20

$2,400

Therefore, the cost of building the garage will be $2,400.


Example 2: Salary hike increase by percent

You are the manager of a company and look to increase by 12% the salary of a performer employee in your company. His salary is currently $75,000. What will be the new salary?

Final Value = Initial Value × (1 + Percentage Increase / 100)

$75,000 x (1 + 12/100)

$75,000 x (1 + 0.12)

$75,100 x 1.12

$84,000

$84,000 will be the salary of an employee after a 12% increase from $75,000.

 

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