29.47% is the change from 302 to 391
Calculation steps:
[( 391 - 302 ) ÷ 302] x 100 = 29.47%
Formula
Percentage change = [(391 - 302) / 302] x 100
Subtract the new number by the original number
391 - 302 = 89
89 ÷ 302 = 0.2947019867549669
0.2947019867549669 x 100 = 29.47%