-90.74% is the change from 162 to 15
Calculation steps:
[( 15 - 162 ) ÷ 162] x 100 = -90.74%
Formula
Percentage change = [(15 - 162) / 162] x 100
Subtract the new number by the original number
15 - 162 = -147
-147 ÷ 162 = -0.9074074074074074
-0.9074074074074074 x 100 = -90.74%