To calculate the percentage change from 15 to 25, we use the formula:

$\text{Percentage Change} = \frac{\text{New Value} - \text{Old Value}}{\text{Old Value}} \times 100$

Substitute the values:

$\text{Percentage Change} = \frac{25 - 15}{15} \times 100$

$= \frac{10}{15} \times 100$

$= 0.6667 \times 100$

$= 66.67\%$

So, the percentage change from 15 to 25 is 66.67%.

Would you like further details or have any questions?

Related Questions:

1. What is the percentage change from 25 to 15?
2. How do you calculate percentage change between two numbers in general?
3. If the initial value was 20 and changed to 25, what would the percentage change be?
4. How does percentage increase differ from percentage decrease?
5. Can you find the absolute difference and the percentage difference between any two values?

Tip:

When calculating percentage changes, remember to subtract in the correct order: (New Value - Old Value) for increases, or (Old Value - New Value) for decreases.