3184% is the change from 25 to 821
Calculation steps:
[( 821 - 25 ) ÷ 25] x 100 = 3184%
Formula
Percentage change = [(821 - 25) / 25] x 100
Subtract the new number by the original number
821 - 25 = 796
796 ÷ 25 = 31.84
31.84 x 100 = 3184%
Example