-85.23% is the change from 643 to 95
Calculation steps:
[( 95 - 643 ) ÷ 643] x 100 = -85.23%
Formula
Percentage change = [(95 - 643) / 643] x 100
Subtract the new number by the original number
95 - 643 = -548
-548 ÷ 643 = -0.8522550544323484
-0.8522550544323484 x 100 = -85.23%