81.39% is the change from 446 to 809
Calculation steps:
[( 809 - 446 ) ÷ 446] x 100 = 81.39%
Formula
Percentage change = [(809 - 446) / 446] x 100
Subtract the new number by the original number
809 - 446 = 363
363 ÷ 446 = 0.8139013452914798
0.8139013452914798 x 100 = 81.39%