-1.31% is the change from 229 to 226
Calculation steps:
[( 226 - 229 ) ÷ 229] x 100 = -1.31%
Formula
Percentage change = [(226 - 229) / 229] x 100
Subtract the new number by the original number
226 - 229 = -3
-3 ÷ 229 = -0.013100436681222707
-0.013100436681222707 x 100 = -1.31%