-17.29% is the change from 671 to 555
Calculation steps:
[( 555 - 671 ) ÷ 671] x 100 = -17.29%
Formula
Percentage change = [(555 - 671) / 671] x 100
Subtract the new number by the original number
555 - 671 = -116
-116 ÷ 671 = -0.17287630402384502
-0.17287630402384502 x 100 = -17.29%