28.01% is the change from 307 to 393
Calculation steps:
[( 393 - 307 ) ÷ 307] x 100 = 28.01%
Formula
Percentage change = [(393 - 307) / 307] x 100
Subtract the new number by the original number
393 - 307 = 86
86 ÷ 307 = 0.28013029315960913
0.28013029315960913 x 100 = 28.01%