-85.02% is the change from 641 to 96
Calculation steps:
[( 96 - 641 ) ÷ 641] x 100 = -85.02%
Formula
Percentage change = [(96 - 641) / 641] x 100
Subtract the new number by the original number
96 - 641 = -545
-545 ÷ 641 = -0.8502340093603744
-0.8502340093603744 x 100 = -85.02%