3.08% is the change from 487 to 502
Calculation steps:
[( 502 - 487 ) ÷ 487] x 100 = 3.08%
Formula
Percentage change = [(502 - 487) / 487] x 100
Subtract the new number by the original number
502 - 487 = 15
15 ÷ 487 = 0.030800821355236138
0.030800821355236138 x 100 = 3.08%