22.49% is the change from 249 to 305
Calculation steps:
[( 305 - 249 ) ÷ 249] x 100 = 22.49%
Formula
Percentage change = [(305 - 249) / 249] x 100
Subtract the new number by the original number
305 - 249 = 56
56 ÷ 249 = 0.2248995983935743
0.2248995983935743 x 100 = 22.49%