-0.8% is the change from 628 to 623
Calculation steps:
[( 623 - 628 ) ÷ 628] x 100 = -0.8%
Formula
Percentage change = [(623 - 628) / 628] x 100
Subtract the new number by the original number
623 - 628 = -5
-5 ÷ 628 = -0.007961783439490446
-0.007961783439490446 x 100 = -0.8%