-27.55% is the change from 628 to 455
Calculation steps:
[( 455 - 628 ) ÷ 628] x 100 = -27.55%
Formula
Percentage change = [(455 - 628) / 628] x 100
Subtract the new number by the original number
455 - 628 = -173
-173 ÷ 628 = -0.2754777070063694
-0.2754777070063694 x 100 = -27.55%