-83.15% is the change from 641 to 108
Calculation steps:
[( 108 - 641 ) ÷ 641] x 100 = -83.15%
Formula
Percentage change = [(108 - 641) / 641] x 100
Subtract the new number by the original number
108 - 641 = -533
-533 ÷ 641 = -0.8315132605304212
-0.8315132605304212 x 100 = -83.15%