-61.24% is the change from 258 to 100
Calculation steps:
[( 100 - 258 ) ÷ 258] x 100 = -61.24%
Formula
Percentage change = [(100 - 258) / 258] x 100
Subtract the new number by the original number
100 - 258 = -158
-158 ÷ 258 = -0.6124031007751938
-0.6124031007751938 x 100 = -61.24%