90.26% is the change from 431 to 820
Calculation steps:
[( 820 - 431 ) ÷ 431] x 100 = 90.26%
Formula
Percentage change = [(820 - 431) / 431] x 100
Subtract the new number by the original number
820 - 431 = 389
389 ÷ 431 = 0.9025522041763341
0.9025522041763341 x 100 = 90.26%