-89.05% is the change from 685 to 75
Calculation steps:
[( 75 - 685 ) ÷ 685] x 100 = -89.05%
Formula
Percentage change = [(75 - 685) / 685] x 100
Subtract the new number by the original number
75 - 685 = -610
-610 ÷ 685 = -0.8905109489051095
-0.8905109489051095 x 100 = -89.05%