-16.79% is the change from 667 to 555
Calculation steps:
[( 555 - 667 ) ÷ 667] x 100 = -16.79%
Formula
Percentage change = [(555 - 667) / 667] x 100
Subtract the new number by the original number
555 - 667 = -112
-112 ÷ 667 = -0.1679160419790105
-0.1679160419790105 x 100 = -16.79%