10.08% is the change from 258 to 284
Calculation steps:
[( 284 - 258 ) ÷ 258] x 100 = 10.08%
Formula
Percentage change = [(284 - 258) / 258] x 100
Subtract the new number by the original number
284 - 258 = 26
26 ÷ 258 = 0.10077519379844961
0.10077519379844961 x 100 = 10.08%