82.7% is the change from 445 to 813
Calculation steps:
[( 813 - 445 ) ÷ 445] x 100 = 82.7%
Formula
Percentage change = [(813 - 445) / 445] x 100
Subtract the new number by the original number
813 - 445 = 368
368 ÷ 445 = 0.8269662921348314
0.8269662921348314 x 100 = 82.7%