55.37% is the change from 307 to 477
Calculation steps:
[( 477 - 307 ) ÷ 307] x 100 = 55.37%
Formula
Percentage change = [(477 - 307) / 307] x 100
Subtract the new number by the original number
477 - 307 = 170
170 ÷ 307 = 0.5537459283387622
0.5537459283387622 x 100 = 55.37%