-19.21% is the change from 687 to 555
Calculation steps:
[( 555 - 687 ) ÷ 687] x 100 = -19.21%
Formula
Percentage change = [(555 - 687) / 687] x 100
Subtract the new number by the original number
555 - 687 = -132
-132 ÷ 687 = -0.19213973799126638
-0.19213973799126638 x 100 = -19.21%