42.81% is the change from 306 to 437
Calculation steps:
[( 437 - 306 ) ÷ 306] x 100 = 42.81%
Formula
Percentage change = [(437 - 306) / 306] x 100
Subtract the new number by the original number
437 - 306 = 131
131 ÷ 306 = 0.42810457516339867
0.42810457516339867 x 100 = 42.81%