8.2% is the change from 451 to 488
Calculation steps:
[( 488 - 451 ) ÷ 451] x 100 = 8.2%
Formula
Percentage change = [(488 - 451) / 451] x 100
Subtract the new number by the original number
488 - 451 = 37
37 ÷ 451 = 0.082039911308204
0.082039911308204 x 100 = 8.2%