3148% is the change from 25 to 812
Calculation steps:
[( 812 - 25 ) ÷ 25] x 100 = 3148%
Formula
Percentage change = [(812 - 25) / 25] x 100
Subtract the new number by the original number
812 - 25 = 787
787 ÷ 25 = 31.48
31.48 x 100 = 3148%
Example