-89.52% is the change from 649 to 68
Calculation steps:
[( 68 - 649 ) ÷ 649] x 100 = -89.52%
Formula
Percentage change = [(68 - 649) / 649] x 100
Subtract the new number by the original number
68 - 649 = -581
-581 ÷ 649 = -0.8952234206471494
-0.8952234206471494 x 100 = -89.52%