-29.93% is the change from 558 to 391
Calculation steps:
[( 391 - 558 ) ÷ 558] x 100 = -29.93%
Formula
Percentage change = [(391 - 558) / 558] x 100
Subtract the new number by the original number
391 - 558 = -167
-167 ÷ 558 = -0.2992831541218638
-0.2992831541218638 x 100 = -29.93%