97.22% is the change from 431 to 850
Calculation steps:
[( 850 - 431 ) ÷ 431] x 100 = 97.22%
Formula
Percentage change = [(850 - 431) / 431] x 100
Subtract the new number by the original number
850 - 431 = 419
419 ÷ 431 = 0.9721577726218097
0.9721577726218097 x 100 = 97.22%