-19.18% is the change from 657 to 531
Calculation steps:
[( 531 - 657 ) ÷ 657] x 100 = -19.18%
Formula
Percentage change = [(531 - 657) / 657] x 100
Subtract the new number by the original number
531 - 657 = -126
-126 ÷ 657 = -0.1917808219178082
-0.1917808219178082 x 100 = -19.18%