27.55% is the change from 657 to 838
Calculation steps:
[( 838 - 657 ) ÷ 657] x 100 = 27.55%
Formula
Percentage change = [(838 - 657) / 657] x 100
Subtract the new number by the original number
838 - 657 = 181
181 ÷ 657 = 0.2754946727549467
0.2754946727549467 x 100 = 27.55%