-82.8% is the change from 936 to 161
Calculation steps:
[( 161 - 936 ) ÷ 936] x 100 = -82.8%
Formula
Percentage change = [(161 - 936) / 936] x 100
Subtract the new number by the original number
161 - 936 = -775
-775 ÷ 936 = -0.8279914529914529
-0.8279914529914529 x 100 = -82.8%