-0.66% is the change from 610 to 606
Calculation steps:
[( 606 - 610 ) ÷ 610] x 100 = -0.66%
Formula
Percentage change = [(606 - 610) / 610] x 100
Subtract the new number by the original number
606 - 610 = -4
-4 ÷ 610 = -0.006557377049180328
-0.006557377049180328 x 100 = -0.66%