8.72% is the change from 447 to 486
Calculation steps:
[( 486 - 447 ) ÷ 447] x 100 = 8.72%
Formula
Percentage change = [(486 - 447) / 447] x 100
Subtract the new number by the original number
486 - 447 = 39
39 ÷ 447 = 0.087248322147651
0.087248322147651 x 100 = 8.72%