84.12% is the change from 447 to 823
Calculation steps:
[( 823 - 447 ) ÷ 447] x 100 = 84.12%
Formula
Percentage change = [(823 - 447) / 447] x 100
Subtract the new number by the original number
823 - 447 = 376
376 ÷ 447 = 0.8411633109619687
0.8411633109619687 x 100 = 84.12%