40.24% is the change from 502 to 704
Calculation steps:
[( 704 - 502 ) ÷ 502] x 100 = 40.24%
Formula
Percentage change = [(704 - 502) / 502] x 100
Subtract the new number by the original number
704 - 502 = 202
202 ÷ 502 = 0.40239043824701193
0.40239043824701193 x 100 = 40.24%