8.11% is the change from 481 to 520
Calculation steps:
[( 520 - 481 ) ÷ 481] x 100 = 8.11%
Formula
Percentage change = [(520 - 481) / 481] x 100
Subtract the new number by the original number
520 - 481 = 39
39 ÷ 481 = 0.08108108108108109
0.08108108108108109 x 100 = 8.11%