66.73% is the change from 490 to 817
Calculation steps:
[( 817 - 490 ) ÷ 490] x 100 = 66.73%
Formula
Percentage change = [(817 - 490) / 490] x 100
Subtract the new number by the original number
817 - 490 = 327
327 ÷ 490 = 0.6673469387755102
0.6673469387755102 x 100 = 66.73%