-88% is the change from 833 to 100
Calculation steps:
[( 100 - 833 ) ÷ 833] x 100 = -88%
Formula
Percentage change = [(100 - 833) / 833] x 100
Subtract the new number by the original number
100 - 833 = -733
-733 ÷ 833 = -0.879951980792317
-0.879951980792317 x 100 = -88%