-90.82% is the change from 817 to 75
Calculation steps:
[( 75 - 817 ) ÷ 817] x 100 = -90.82%
Formula
Percentage change = [(75 - 817) / 817] x 100
Subtract the new number by the original number
75 - 817 = -742
-742 ÷ 817 = -0.9082007343941249
-0.9082007343941249 x 100 = -90.82%