7% is the change from 486 to 520
Calculation steps:
[( 520 - 486 ) ÷ 486] x 100 = 7%
Formula
Percentage change = [(520 - 486) / 486] x 100
Subtract the new number by the original number
520 - 486 = 34
34 ÷ 486 = 0.06995884773662552
0.06995884773662552 x 100 = 7%