-87.76% is the change from 833 to 102
Calculation steps:
[( 102 - 833 ) ÷ 833] x 100 = -87.76%
Formula
Percentage change = [(102 - 833) / 833] x 100
Subtract the new number by the original number
102 - 833 = -731
-731 ÷ 833 = -0.8775510204081632
-0.8775510204081632 x 100 = -87.76%