-1.07% is the change from 655 to 648
Calculation steps:
[( 648 - 655 ) ÷ 655] x 100 = -1.07%
Formula
Percentage change = [(648 - 655) / 655] x 100
Subtract the new number by the original number
648 - 655 = -7
-7 ÷ 655 = -0.010687022900763359
-0.010687022900763359 x 100 = -1.07%