-2.86% is the change from 629 to 611
Calculation steps:
[( 611 - 629 ) ÷ 629] x 100 = -2.86%
Formula
Percentage change = [(611 - 629) / 629] x 100
Subtract the new number by the original number
611 - 629 = -18
-18 ÷ 629 = -0.028616852146263912
-0.028616852146263912 x 100 = -2.86%