33.87% is the change from 431 to 577
Calculation steps:
[( 577 - 431 ) ÷ 431] x 100 = 33.87%
Formula
Percentage change = [(577 - 431) / 431] x 100
Subtract the new number by the original number
577 - 431 = 146
146 ÷ 431 = 0.33874709976798145
0.33874709976798145 x 100 = 33.87%