30.9% is the change from 657 to 860
Calculation steps:
[( 860 - 657 ) ÷ 657] x 100 = 30.9%
Formula
Percentage change = [(860 - 657) / 657] x 100
Subtract the new number by the original number
860 - 657 = 203
203 ÷ 657 = 0.3089802130898021
0.3089802130898021 x 100 = 30.9%