-0.15% is the change from 656 to 655
Calculation steps:
[( 655 - 656 ) ÷ 656] x 100 = -0.15%
Formula
Percentage change = [(655 - 656) / 656] x 100
Subtract the new number by the original number
655 - 656 = -1
-1 ÷ 656 = -0.001524390243902439
-0.001524390243902439 x 100 = -0.15%