65.38% is the change from 494 to 817
Calculation steps:
[( 817 - 494 ) ÷ 494] x 100 = 65.38%
Formula
Percentage change = [(817 - 494) / 494] x 100
Subtract the new number by the original number
817 - 494 = 323
323 ÷ 494 = 0.6538461538461539
0.6538461538461539 x 100 = 65.38%