-34.04% is the change from 285 to 188
Calculation steps:
[( 188 - 285 ) ÷ 285] x 100 = -34.04%
Formula
Percentage change = [(188 - 285) / 285] x 100
Subtract the new number by the original number
188 - 285 = -97
-97 ÷ 285 = -0.34035087719298246
-0.34035087719298246 x 100 = -34.04%