63.77% is the change from 494 to 809
Calculation steps:
[( 809 - 494 ) ÷ 494] x 100 = 63.77%
Formula
Percentage change = [(809 - 494) / 494] x 100
Subtract the new number by the original number
809 - 494 = 315
315 ÷ 494 = 0.6376518218623481
0.6376518218623481 x 100 = 63.77%