-87.98% is the change from 258 to 31
Calculation steps:
[( 31 - 258 ) ÷ 258] x 100 = -87.98%
Formula
Percentage change = [(31 - 258) / 258] x 100
Subtract the new number by the original number
31 - 258 = -227
-227 ÷ 258 = -0.8798449612403101
-0.8798449612403101 x 100 = -87.98%