-2.71% is the change from 628 to 611
Calculation steps:
[( 611 - 628 ) ÷ 628] x 100 = -2.71%
Formula
Percentage change = [(611 - 628) / 628] x 100
Subtract the new number by the original number
611 - 628 = -17
-17 ÷ 628 = -0.027070063694267517
-0.027070063694267517 x 100 = -2.71%