9.4% is the change from 415 to 454
Calculation steps:
[( 454 - 415 ) ÷ 415] x 100 = 9.4%
Formula
Percentage change = [(454 - 415) / 415] x 100
Subtract the new number by the original number
454 - 415 = 39
39 ÷ 415 = 0.09397590361445783
0.09397590361445783 x 100 = 9.4%