-35.18% is the change from 398 to 258
Calculation steps:
[( 258 - 398 ) ÷ 398] x 100 = -35.18%
Formula
Percentage change = [(258 - 398) / 398] x 100
Subtract the new number by the original number
258 - 398 = -140
-140 ÷ 398 = -0.35175879396984927
-0.35175879396984927 x 100 = -35.18%