66.12% is the change from 490 to 814
Calculation steps:
[( 814 - 490 ) ÷ 490] x 100 = 66.12%
Formula
Percentage change = [(814 - 490) / 490] x 100
Subtract the new number by the original number
814 - 490 = 324
324 ÷ 490 = 0.6612244897959184
0.6612244897959184 x 100 = 66.12%