-51.35% is the change from 185 to 90
Calculation steps:
[( 90 - 185 ) ÷ 185] x 100 = -51.35%
Formula
Percentage change = [(90 - 185) / 185] x 100
Subtract the new number by the original number
90 - 185 = -95
-95 ÷ 185 = -0.5135135135135135
-0.5135135135135135 x 100 = -51.35%