-16.72% is the change from 670 to 558
Calculation steps:
[( 558 - 670 ) ÷ 670] x 100 = -16.72%
Formula
Percentage change = [(558 - 670) / 670] x 100
Subtract the new number by the original number
558 - 670 = -112
-112 ÷ 670 = -0.16716417910447762
-0.16716417910447762 x 100 = -16.72%