-3.48% is the change from 633 to 611
Calculation steps:
[( 611 - 633 ) ÷ 633] x 100 = -3.48%
Formula
Percentage change = [(611 - 633) / 633] x 100
Subtract the new number by the original number
611 - 633 = -22
-22 ÷ 633 = -0.03475513428120063
-0.03475513428120063 x 100 = -3.48%