62.78% is the change from 497 to 809
Calculation steps:
[( 809 - 497 ) ÷ 497] x 100 = 62.78%
Formula
Percentage change = [(809 - 497) / 497] x 100
Subtract the new number by the original number
809 - 497 = 312
312 ÷ 497 = 0.6277665995975855
0.6277665995975855 x 100 = 62.78%