36.81% is the change from 307 to 420
Calculation steps:
[( 420 - 307 ) ÷ 307] x 100 = 36.81%
Formula
Percentage change = [(420 - 307) / 307] x 100
Subtract the new number by the original number
420 - 307 = 113
113 ÷ 307 = 0.36807817589576547
0.36807817589576547 x 100 = 36.81%