4% is the change from 225 to 234
Calculation steps:
[( 234 - 225 ) ÷ 225] x 100 = 4%
Formula
Percentage change = [(234 - 225) / 225] x 100
Subtract the new number by the original number
234 - 225 = 9
9 ÷ 225 = 0.04
0.04 x 100 = 4%
Example