3.27% is the change from 520 to 537
Calculation steps:
[( 537 - 520 ) ÷ 520] x 100 = 3.27%
Formula
Percentage change = [(537 - 520) / 520] x 100
Subtract the new number by the original number
537 - 520 = 17
17 ÷ 520 = 0.032692307692307694
0.032692307692307694 x 100 = 3.27%