6.92% is the change from 520 to 556
Calculation steps:
[( 556 - 520 ) ÷ 520] x 100 = 6.92%
Formula
Percentage change = [(556 - 520) / 520] x 100
Subtract the new number by the original number
556 - 520 = 36
36 ÷ 520 = 0.06923076923076923
0.06923076923076923 x 100 = 6.92%