63.47% is the change from 501 to 819
Calculation steps:
[( 819 - 501 ) ÷ 501] x 100 = 63.47%
Formula
Percentage change = [(819 - 501) / 501] x 100
Subtract the new number by the original number
819 - 501 = 318
318 ÷ 501 = 0.6347305389221557
0.6347305389221557 x 100 = 63.47%