19.49% is the change from 431 to 515
Calculation steps:
[( 515 - 431 ) ÷ 431] x 100 = 19.49%
Formula
Percentage change = [(515 - 431) / 431] x 100
Subtract the new number by the original number
515 - 431 = 84
84 ÷ 431 = 0.19489559164733178
0.19489559164733178 x 100 = 19.49%