71.22% is the change from 490 to 839
Calculation steps:
[( 839 - 490 ) ÷ 490] x 100 = 71.22%
Formula
Percentage change = [(839 - 490) / 490] x 100
Subtract the new number by the original number
839 - 490 = 349
349 ÷ 490 = 0.7122448979591837
0.7122448979591837 x 100 = 71.22%