-0.91% is the change from 656 to 650
Calculation steps:
[( 650 - 656 ) ÷ 656] x 100 = -0.91%
Formula
Percentage change = [(650 - 656) / 656] x 100
Subtract the new number by the original number
650 - 656 = -6
-6 ÷ 656 = -0.009146341463414634
-0.009146341463414634 x 100 = -0.91%