-91.58% is the change from 285 to 24
Calculation steps:
[( 24 - 285 ) ÷ 285] x 100 = -91.58%
Formula
Percentage change = [(24 - 285) / 285] x 100
Subtract the new number by the original number
24 - 285 = -261
-261 ÷ 285 = -0.9157894736842105
-0.9157894736842105 x 100 = -91.58%