108.2% is the change from 451 to 939
Calculation steps:
[( 939 - 451 ) ÷ 451] x 100 = 108.2%
Formula
Percentage change = [(939 - 451) / 451] x 100
Subtract the new number by the original number
939 - 451 = 488
488 ÷ 451 = 1.082039911308204
1.082039911308204 x 100 = 108.2%