-5.56% is the change from 648 to 612
Calculation steps:
[( 612 - 648 ) ÷ 648] x 100 = -5.56%
Formula
Percentage change = [(612 - 648) / 648] x 100
Subtract the new number by the original number
612 - 648 = -36
-36 ÷ 648 = -0.05555555555555555
-0.05555555555555555 x 100 = -5.56%