To find the percentage change from 75 to 135, we need to first calculate the difference between the two numbers.

Step 1: Difference = Final Value - Initial Value

Difference = 135 - 75

Difference = 60

Step 2: Next, we need to find the absolute value of the difference. This is because percentage change is always calculated as a positive value.

Absolute Difference = |Difference|

Absolute Difference = |60|

Absolute Difference = 60

Step 3: Now, we can calculate the percentage change using the formula:

Percentage Change = (Absolute Difference / Initial Value) x 100

Percentage Change = (60 / 75) x 100

Percentage Change = 80%

Therefore, the percentage change from 75 to 135 is 80%. This means that there was an increase of 80% from 75 to 135.