64.34% is the change from 502 to 825
Calculation steps:
[( 825 - 502 ) ÷ 502] x 100 = 64.34%
Formula
Percentage change = [(825 - 502) / 502] x 100
Subtract the new number by the original number
825 - 502 = 323
323 ÷ 502 = 0.6434262948207171
0.6434262948207171 x 100 = 64.34%