2468% is the change from 25 to 642
Calculation steps:
[( 642 - 25 ) ÷ 25] x 100 = 2468%
Formula
Percentage change = [(642 - 25) / 25] x 100
Subtract the new number by the original number
642 - 25 = 617
617 ÷ 25 = 24.68
24.68 x 100 = 2468%
Example