-6.88% is the change from 654 to 609
Calculation steps:
[( 609 - 654 ) ÷ 654] x 100 = -6.88%
Formula
Percentage change = [(609 - 654) / 654] x 100
Subtract the new number by the original number
609 - 654 = -45
-45 ÷ 654 = -0.06880733944954129
-0.06880733944954129 x 100 = -6.88%