-81.99% is the change from 905 to 163
Calculation steps:
[( 163 - 905 ) ÷ 905] x 100 = -81.99%
Formula
Percentage change = [(163 - 905) / 905] x 100
Subtract the new number by the original number
163 - 905 = -742
-742 ÷ 905 = -0.8198895027624309
-0.8198895027624309 x 100 = -81.99%