5.77% is the change from 520 to 550
Calculation steps:
[( 550 - 520 ) ÷ 520] x 100 = 5.77%
Formula
Percentage change = [(550 - 520) / 520] x 100
Subtract the new number by the original number
550 - 520 = 30
30 ÷ 520 = 0.057692307692307696
0.057692307692307696 x 100 = 5.77%