41.31% is the change from 305 to 431
Calculation steps:
[( 431 - 305 ) ÷ 305] x 100 = 41.31%
Formula
Percentage change = [(431 - 305) / 305] x 100
Subtract the new number by the original number
431 - 305 = 126
126 ÷ 305 = 0.4131147540983607
0.4131147540983607 x 100 = 41.31%