To find the percentage change from 25000 to 7500, we need to first calculate the difference between the two numbers.

Step 1: Difference = Final Value - Initial Value

Difference = 7500 - 25000

Difference = -17500

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 = |-17500|

Absolute Difference = 17500

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

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

Percentage Change = (17500 / 25000) x 100

Percentage Change = 70%

Therefore, the percentage change from 25000 to 7500 is -70%. This means that there was a decrease of 70% from 25000 to 7500.