4.37% is the change from 481 to 502
Calculation steps:
[( 502 - 481 ) ÷ 481] x 100 = 4.37%
Formula
Percentage change = [(502 - 481) / 481] x 100
Subtract the new number by the original number
502 - 481 = 21
21 ÷ 481 = 0.04365904365904366
0.04365904365904366 x 100 = 4.37%