-90.37% is the change from 187 to 18
Calculation steps:
[( 18 - 187 ) ÷ 187] x 100 = -90.37%
Formula
Percentage change = [(18 - 187) / 187] x 100
Subtract the new number by the original number
18 - 187 = -169
-169 ÷ 187 = -0.9037433155080213
-0.9037433155080213 x 100 = -90.37%