121.06% is the change from 451 to 997
Calculation steps:
[( 997 - 451 ) ÷ 451] x 100 = 121.06%
Formula
Percentage change = [(997 - 451) / 451] x 100
Subtract the new number by the original number
997 - 451 = 546
546 ÷ 451 = 1.2106430155210643
1.2106430155210643 x 100 = 121.06%