-65.96% is the change from 285 to 97
Calculation steps:
[( 97 - 285 ) ÷ 285] x 100 = -65.96%
Formula
Percentage change = [(97 - 285) / 285] x 100
Subtract the new number by the original number
97 - 285 = -188
-188 ÷ 285 = -0.6596491228070176
-0.6596491228070176 x 100 = -65.96%