31.05% is the change from 657 to 861
Calculation steps:
[( 861 - 657 ) ÷ 657] x 100 = 31.05%
Formula
Percentage change = [(861 - 657) / 657] x 100
Subtract the new number by the original number
861 - 657 = 204
204 ÷ 657 = 0.3105022831050228
0.3105022831050228 x 100 = 31.05%