-89.1% is the change from 936 to 102
Calculation steps:
[( 102 - 936 ) ÷ 936] x 100 = -89.1%
Formula
Percentage change = [(102 - 936) / 936] x 100
Subtract the new number by the original number
102 - 936 = -834
-834 ÷ 936 = -0.8910256410256411
-0.8910256410256411 x 100 = -89.1%