-88.57% is the change from 840 to 96
Calculation steps:
[( 96 - 840 ) ÷ 840] x 100 = -88.57%
Formula
Percentage change = [(96 - 840) / 840] x 100
Subtract the new number by the original number
96 - 840 = -744
-744 ÷ 840 = -0.8857142857142857
-0.8857142857142857 x 100 = -88.57%