-85.84% is the change from 558 to 79
Calculation steps:
[( 79 - 558 ) ÷ 558] x 100 = -85.84%
Formula
Percentage change = [(79 - 558) / 558] x 100
Subtract the new number by the original number
79 - 558 = -479
-479 ÷ 558 = -0.8584229390681004
-0.8584229390681004 x 100 = -85.84%