-63.16% is the change from 285 to 105
Calculation steps:
[( 105 - 285 ) ÷ 285] x 100 = -63.16%
Formula
Percentage change = [(105 - 285) / 285] x 100
Subtract the new number by the original number
105 - 285 = -180
-180 ÷ 285 = -0.631578947368421
-0.631578947368421 x 100 = -63.16%