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To find the percentage change from 40 to 25, we need to first calculate the difference between the two numbers.
Step 1: Difference = Final Value - Initial Value
Difference = 25 - 40
Difference = -15
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 = |-15|
Absolute Difference = 15
Step 3: Now, we can calculate the percentage change using the formula:
Percentage Change = (Absolute Difference / Initial Value) x 100
Percentage Change = (15 / 40) x 100
Percentage Change = 37.5%
Therefore, the percentage change from 40 to 25 is -37.5%. This means that there was a decrease of 37.5% from 40 to 25.