-30.93% is the change from 236 to 163
Calculation steps:
[( 163 - 236 ) ÷ 236] x 100 = -30.93%
Formula
Percentage change = [(163 - 236) / 236] x 100
Subtract the new number by the original number
163 - 236 = -73
-73 ÷ 236 = -0.3093220338983051
-0.3093220338983051 x 100 = -30.93%