23.2% is the change from 306 to 377
Calculation steps:
[( 377 - 306 ) ÷ 306] x 100 = 23.2%
Formula
Percentage change = [(377 - 306) / 306] x 100
Subtract the new number by the original number
377 - 306 = 71
71 ÷ 306 = 0.23202614379084968
0.23202614379084968 x 100 = 23.2%