-15.96% is the change from 664 to 558
Calculation steps:
[( 558 - 664 ) ÷ 664] x 100 = -15.96%
Formula
Percentage change = [(558 - 664) / 664] x 100
Subtract the new number by the original number
558 - 664 = -106
-106 ÷ 664 = -0.15963855421686746
-0.15963855421686746 x 100 = -15.96%