4.4% is the change from 455 to 475
Calculation steps:
[( 475 - 455 ) ÷ 455] x 100 = 4.4%
Formula
Percentage change = [(475 - 455) / 455] x 100
Subtract the new number by the original number
475 - 455 = 20
20 ÷ 455 = 0.04395604395604396
0.04395604395604396 x 100 = 4.4%