42.67% is the change from 307 to 438
Calculation steps:
[( 438 - 307 ) ÷ 307] x 100 = 42.67%
Formula
Percentage change = [(438 - 307) / 307] x 100
Subtract the new number by the original number
438 - 307 = 131
131 ÷ 307 = 0.42671009771986973
0.42671009771986973 x 100 = 42.67%