-88.89% is the change from 162 to 18
Calculation steps:
[( 18 - 162 ) ÷ 162] x 100 = -88.89%
Formula
Percentage change = [(18 - 162) / 162] x 100
Subtract the new number by the original number
18 - 162 = -144
-144 ÷ 162 = -0.8888888888888888
-0.8888888888888888 x 100 = -88.89%