Enter the original number an the final number into the calculator to determine the total fold increase.

## Fold Increase Formula

The fold increase formula is as follows:

F-A:B = B/A

- Where F-A:B is the fold increase from A to B
- B is the final number
- A is the original number

## Fold Increase Definition

A fold increase is defined of the ratio of a increased number to the original number. For example, an original number of 15 and final number of 30 would be a 2 fold increase (30/15=2).

## What is a 20 fold increase?

A 20 fold increase is defined as in increase in a number of 20 times or in other words a %2,000 increase. A 20 fold increase of the number 2 would be 20*2 = 40.

## What does 2 fold increase mean?

A 2 fold increase would mean that the final number is 2 times the original number. A 2 fold increase of the number 5 would be 10, so 5*2=10.

## How to calculate a fold increase?

To calculate a fold increase, first, determine the original number. For this example we will say that number is 5. Next, determine the final number. For this example we will say this is 15. Finally, using the formula above, calculate the fold increase. So, F-A:B=15/5 = 3 fold increase.