18.56% is the change from 431 to 511
Calculation steps:
[( 511 - 431 ) ÷ 431] x 100 = 18.56%
Formula
Percentage change = [(511 - 431) / 431] x 100
Subtract the new number by the original number
511 - 431 = 80
80 ÷ 431 = 0.18561484918793503
0.18561484918793503 x 100 = 18.56%