-53.51% is the change from 185 to 86
Calculation steps:
[( 86 - 185 ) ÷ 185] x 100 = -53.51%
Formula
Percentage change = [(86 - 185) / 185] x 100
Subtract the new number by the original number
86 - 185 = -99
-99 ÷ 185 = -0.5351351351351351
-0.5351351351351351 x 100 = -53.51%