-94.62% is the change from 558 to 30
Calculation steps:
[( 30 - 558 ) ÷ 558] x 100 = -94.62%
Formula
Percentage change = [(30 - 558) / 558] x 100
Subtract the new number by the original number
30 - 558 = -528
-528 ÷ 558 = -0.946236559139785
-0.946236559139785 x 100 = -94.62%