-85.71% is the change from 126 to 18
Calculation steps:
[( 18 - 126 ) ÷ 126] x 100 = -85.71%
Formula
Percentage change = [(18 - 126) / 126] x 100
Subtract the new number by the original number
18 - 126 = -108
-108 ÷ 126 = -0.8571428571428571
-0.8571428571428571 x 100 = -85.71%