-17.22% is the change from 668 to 553
Calculation steps:
[( 553 - 668 ) ÷ 668] x 100 = -17.22%
Formula
Percentage change = [(553 - 668) / 668] x 100
Subtract the new number by the original number
553 - 668 = -115
-115 ÷ 668 = -0.1721556886227545
-0.1721556886227545 x 100 = -17.22%