-93.33% is the change from 285 to 19
Calculation steps:
[( 19 - 285 ) ÷ 285] x 100 = -93.33%
Formula
Percentage change = [(19 - 285) / 285] x 100
Subtract the new number by the original number
19 - 285 = -266
-266 ÷ 285 = -0.9333333333333333
-0.9333333333333333 x 100 = -93.33%