Name: What Is a Decay Factor?
Uploaded: 2023-03-01T08:13:10.573Z
Channel: House of Math
Description: A decay factor tells you how much an amount decreases over time. This video shows how you can save a lot of work when calculating a percentage decrease.

A decay factor tells you how much an amount decreases over time. This video shows how you can save a lot of work when calculating a percentage decrease.

A decay factor helps you calculate a final amount after a percentage has been subtracted. It is given by the formula:

 is the decimal representation of the percentage that is being subtracted.

A growth factor helps you calculate a final amount after a percentage has been added or subtracted. It is given by the formula:

 is the decimal representation of the percentage that is being added or subtracted.

Indicates the percentage decrease between the initial and final amounts. Also known as decay rate.

Calculating a product backwards. For example 6 can be factorized as 2 times 3.

Mathagon

Growth Factor

Growth Factor for an Increase

Decay Factor

Decay Factor for a Decrease

Growth Factor Equal to 1

Finding the Initial Amount 

Finding a Percentage Increase

Finding a Percentage Decrease

Increasing by the Same Percentage Multiple Times

Decreasing by the Same Percentage Multiple Times

Growth Factors

A decay factor tells you how much an amount decreases over time. This video shows how it can save you a lot of work when calculating a percentage decrease. 