-12.18% is the change from 657 to 577
Calculation steps:
[( 577 - 657 ) ÷ 657] x 100 = -12.18%
Formula
Percentage change = [(577 - 657) / 657] x 100
Subtract the new number by the original number
577 - 657 = -80
-80 ÷ 657 = -0.121765601217656
-0.121765601217656 x 100 = -12.18%