-87.8% is the change from 254 to 31
Calculation steps:
[( 31 - 254 ) ÷ 254] x 100 = -87.8%
Formula
Percentage change = [(31 - 254) / 254] x 100
Subtract the new number by the original number
31 - 254 = -223
-223 ÷ 254 = -0.8779527559055118
-0.8779527559055118 x 100 = -87.8%