71.81% is the change from 557 to 957
Calculation steps:
[( 957 - 557 ) ÷ 557] x 100 = 71.81%
Formula
Percentage change = [(957 - 557) / 557] x 100
Subtract the new number by the original number
957 - 557 = 400
400 ÷ 557 = 0.718132854578097
0.718132854578097 x 100 = 71.81%