-6.57% is the change from 609 to 569
Calculation steps:
[( 569 - 609 ) ÷ 609] x 100 = -6.57%
Formula
Percentage change = [(569 - 609) / 609] x 100
Subtract the new number by the original number
569 - 609 = -40
-40 ÷ 609 = -0.06568144499178982
-0.06568144499178982 x 100 = -6.57%