-83.13% is the change from 966 to 163
Calculation steps:
[( 163 - 966 ) ÷ 966] x 100 = -83.13%
Formula
Percentage change = [(163 - 966) / 966] x 100
Subtract the new number by the original number
163 - 966 = -803
-803 ÷ 966 = -0.8312629399585921
-0.8312629399585921 x 100 = -83.13%