-91.04% is the change from 558 to 50
Calculation steps:
[( 50 - 558 ) ÷ 558] x 100 = -91.04%
Formula
Percentage change = [(50 - 558) / 558] x 100
Subtract the new number by the original number
50 - 558 = -508
-508 ÷ 558 = -0.910394265232975
-0.910394265232975 x 100 = -91.04%