Here we will show you how to calculate the percent difference of 111 and 109, which is also known as the percentage difference of 111 and 109.

Percent difference is used when you compare two things. There is no start value or an end value. There is no beginning and no end. One value did not come before the other. It is important to note that 111 and 109 are independent of each other.

To calculate the percent difference of two numbers such as 111 and 109, you first divide the absolute difference of the numbers by the average of the numbers, and then multiply the quotient by 100. Here is the formula:

| × 100 |

In the formula above, a is a number and b is the other number. Again, the numbers are independent of each other, so it does not matter which one is which, but for our calculation we insert a = 111 and b = 109 into the formula to get the following:

| × 100 |

Then, we simplify and solve. Note that || means absolute value, so any negative number will become positive.

| × 100 |

| × 100 |

**Difference ≈ 1.8182%**

Now you know that the percentage difference of 111 and 109 is about 1.8182%. It is key to remember that difference is not the same as change. Go to Percent change from 111 to 109 if that is the answer you were looking for.

**Percent Difference Calculator**

Go here if you need to calculate another percent difference.

**Percent difference of 111 and 110**

Here is the next percent difference tutorial on our list that may be of interest.