71.02% is the change from 490 to 838
Calculation steps:
[( 838 - 490 ) ÷ 490] x 100 = 71.02%
Formula
Percentage change = [(838 - 490) / 490] x 100
Subtract the new number by the original number
838 - 490 = 348
348 ÷ 490 = 0.710204081632653
0.710204081632653 x 100 = 71.02%