11.24% is the change from 258 to 287
Calculation steps:
[( 287 - 258 ) ÷ 258] x 100 = 11.24%
Formula
Percentage change = [(287 - 258) / 258] x 100
Subtract the new number by the original number
287 - 258 = 29
29 ÷ 258 = 0.1124031007751938
0.1124031007751938 x 100 = 11.24%