4.25% is the change from 494 to 515
Calculation steps:
[( 515 - 494 ) ÷ 494] x 100 = 4.25%
Formula
Percentage change = [(515 - 494) / 494] x 100
Subtract the new number by the original number
515 - 494 = 21
21 ÷ 494 = 0.04251012145748988
0.04251012145748988 x 100 = 4.25%