30.29% is the change from 657 to 856
Calculation steps:
[( 856 - 657 ) ÷ 657] x 100 = 30.29%
Formula
Percentage change = [(856 - 657) / 657] x 100
Subtract the new number by the original number
856 - 657 = 199
199 ÷ 657 = 0.3028919330289193
0.3028919330289193 x 100 = 30.29%