-95.35% is the change from 258 to 12
Calculation steps:
[( 12 - 258 ) ÷ 258] x 100 = -95.35%
Formula
Percentage change = [(12 - 258) / 258] x 100
Subtract the new number by the original number
12 - 258 = -246
-246 ÷ 258 = -0.9534883720930233
-0.9534883720930233 x 100 = -95.35%