39.09% is the change from 307 to 427
Calculation steps:
[( 427 - 307 ) ÷ 307] x 100 = 39.09%
Formula
Percentage change = [(427 - 307) / 307] x 100
Subtract the new number by the original number
427 - 307 = 120
120 ÷ 307 = 0.39087947882736157
0.39087947882736157 x 100 = 39.09%