-19.57% is the change from 690 to 555
Calculation steps:
[( 555 - 690 ) ÷ 690] x 100 = -19.57%
Formula
Percentage change = [(555 - 690) / 690] x 100
Subtract the new number by the original number
555 - 690 = -135
-135 ÷ 690 = -0.1956521739130435
-0.1956521739130435 x 100 = -19.57%