-4.28% is the change from 677 to 648
Calculation steps:
[( 648 - 677 ) ÷ 677] x 100 = -4.28%
Formula
Percentage change = [(648 - 677) / 677] x 100
Subtract the new number by the original number
648 - 677 = -29
-29 ÷ 677 = -0.04283604135893648
-0.04283604135893648 x 100 = -4.28%