73.1% is the change from 290 to 502
Calculation steps:
[( 502 - 290 ) ÷ 290] x 100 = 73.1%
Formula
Percentage change = [(502 - 290) / 290] x 100
Subtract the new number by the original number
502 - 290 = 212
212 ÷ 290 = 0.7310344827586207
0.7310344827586207 x 100 = 73.1%