9.8% is the change from 490 to 538
Calculation steps:
[( 538 - 490 ) ÷ 490] x 100 = 9.8%
Formula
Percentage change = [(538 - 490) / 490] x 100
Subtract the new number by the original number
538 - 490 = 48
48 ÷ 490 = 0.09795918367346938
0.09795918367346938 x 100 = 9.8%