2488% is the change from 25 to 647
Calculation steps:
[( 647 - 25 ) ÷ 25] x 100 = 2488%
Formula
Percentage change = [(647 - 25) / 25] x 100
Subtract the new number by the original number
647 - 25 = 622
622 ÷ 25 = 24.88
24.88 x 100 = 2488%
Example