-12.18% is the change from 731 to 642
Calculation steps:
[( 642 - 731 ) ÷ 731] x 100 = -12.18%
Formula
Percentage change = [(642 - 731) / 731] x 100
Subtract the new number by the original number
642 - 731 = -89
-89 ÷ 731 = -0.12175102599179206
-0.12175102599179206 x 100 = -12.18%