-1.31% is the change from 609 to 601
Calculation steps:
[( 601 - 609 ) ÷ 609] x 100 = -1.31%
Formula
Percentage change = [(601 - 609) / 609] x 100
Subtract the new number by the original number
601 - 609 = -8
-8 ÷ 609 = -0.013136288998357963
-0.013136288998357963 x 100 = -1.31%