-2.33% is the change from 129 to 126
Calculation steps:
[( 126 - 129 ) ÷ 129] x 100 = -2.33%
Formula
Percentage change = [(126 - 129) / 129] x 100
Subtract the new number by the original number
126 - 129 = -3
-3 ÷ 129 = -0.023255813953488372
-0.023255813953488372 x 100 = -2.33%