16.7% is the change from 455 to 531
Calculation steps:
[( 531 - 455 ) ÷ 455] x 100 = 16.7%
Formula
Percentage change = [(531 - 455) / 455] x 100
Subtract the new number by the original number
531 - 455 = 76
76 ÷ 455 = 0.16703296703296702
0.16703296703296702 x 100 = 16.7%