5.5% is the change from 545 to 575
Calculation steps:
[( 575 - 545 ) ÷ 545] x 100 = 5.5%
Formula
Percentage change = [(575 - 545) / 545] x 100
Subtract the new number by the original number
575 - 545 = 30
30 ÷ 545 = 0.05504587155963303
0.05504587155963303 x 100 = 5.5%