4.55% is the change from 550 to 575
Calculation steps:
[( 575 - 550 ) ÷ 550] x 100 = 4.55%
Formula
Percentage change = [(575 - 550) / 550] x 100
Subtract the new number by the original number
575 - 550 = 25
25 ÷ 550 = 0.045454545454545456
0.045454545454545456 x 100 = 4.55%