Answer:

Which is of more significance, an increase in price from $100 to $110, or an increase in $20 to $30 ? In both cases the actual change is $10, but in the first one the fractional change is 10/100, which is 1 / 10, and in the second one the fractional change is 10 / 20, which 1 / 2. Although the actual change is the same in both cases, the fractional change is larger in the second case

The fractional change is actual change / original value.