4.31% is the change from 487 to 508
Calculation steps:
[( 508 - 487 ) ÷ 487] x 100 = 4.31%
Formula
Percentage change = [(508 - 487) / 487] x 100
Subtract the new number by the original number
508 - 487 = 21
21 ÷ 487 = 0.043121149897330596
0.043121149897330596 x 100 = 4.31%