-30.88% is the change from 285 to 197
Calculation steps:
[( 197 - 285 ) ÷ 285] x 100 = -30.88%
Formula
Percentage change = [(197 - 285) / 285] x 100
Subtract the new number by the original number
197 - 285 = -88
-88 ÷ 285 = -0.3087719298245614
-0.3087719298245614 x 100 = -30.88%