-6.22% is the change from 691 to 648
Calculation steps:
[( 648 - 691 ) ÷ 691] x 100 = -6.22%
Formula
Percentage change = [(648 - 691) / 691] x 100
Subtract the new number by the original number
648 - 691 = -43
-43 ÷ 691 = -0.06222865412445731
-0.06222865412445731 x 100 = -6.22%