-88.59% is the change from 263 to 30
Calculation steps:
[( 30 - 263 ) ÷ 263] x 100 = -88.59%
Formula
Percentage change = [(30 - 263) / 263] x 100
Subtract the new number by the original number
30 - 263 = -233
-233 ÷ 263 = -0.8859315589353612
-0.8859315589353612 x 100 = -88.59%