-35.09% is the change from 285 to 185
Calculation steps:
[( 185 - 285 ) ÷ 285] x 100 = -35.09%
Formula
Percentage change = [(185 - 285) / 285] x 100
Subtract the new number by the original number
185 - 285 = -100
-100 ÷ 285 = -0.3508771929824561
-0.3508771929824561 x 100 = -35.09%