-4.12% is the change from 655 to 628
Calculation steps:
[( 628 - 655 ) ÷ 655] x 100 = -4.12%
Formula
Percentage change = [(628 - 655) / 655] x 100
Subtract the new number by the original number
628 - 655 = -27
-27 ÷ 655 = -0.04122137404580153
-0.04122137404580153 x 100 = -4.12%