25.15% is the change from 656 to 821
Calculation steps:
[( 821 - 656 ) ÷ 656] x 100 = 25.15%
Formula
Percentage change = [(821 - 656) / 656] x 100
Subtract the new number by the original number
821 - 656 = 165
165 ÷ 656 = 0.25152439024390244
0.25152439024390244 x 100 = 25.15%