-17.82% is the change from 679 to 558
Calculation steps:
[( 558 - 679 ) ÷ 679] x 100 = -17.82%
Formula
Percentage change = [(558 - 679) / 679] x 100
Subtract the new number by the original number
558 - 679 = -121
-121 ÷ 679 = -0.17820324005891017
-0.17820324005891017 x 100 = -17.82%