-89.32% is the change from 281 to 30
Calculation steps:
[( 30 - 281 ) ÷ 281] x 100 = -89.32%
Formula
Percentage change = [(30 - 281) / 281] x 100
Subtract the new number by the original number
30 - 281 = -251
-251 ÷ 281 = -0.8932384341637011
-0.8932384341637011 x 100 = -89.32%