-89.22% is the change from 102 to 11
Calculation steps:
[( 11 - 102 ) ÷ 102] x 100 = -89.22%
Formula
Percentage change = [(11 - 102) / 102] x 100
Subtract the new number by the original number
11 - 102 = -91
-91 ÷ 102 = -0.8921568627450981
-0.8921568627450981 x 100 = -89.22%