63.82% is the change from 503 to 824
Calculation steps:
[( 824 - 503 ) ÷ 503] x 100 = 63.82%
Formula
Percentage change = [(824 - 503) / 503] x 100
Subtract the new number by the original number
824 - 503 = 321
321 ÷ 503 = 0.6381709741550696
0.6381709741550696 x 100 = 63.82%