-88.85% is the change from 646 to 72
Calculation steps:
[( 72 - 646 ) ÷ 646] x 100 = -88.85%
Formula
Percentage change = [(72 - 646) / 646] x 100
Subtract the new number by the original number
72 - 646 = -574
-574 ÷ 646 = -0.8885448916408669
-0.8885448916408669 x 100 = -88.85%