20 *1000 = 20000 * 0.0015 = 30 yuan (purchase procedure ticket)

4+4.5-1-1.5-4+2 = 4 *1000 = 4,000 yuan (gross profit at the time of sale)

20+4 (the price per share calculated above) =24 (the share price at the time of selling) *1000 = 24,000 (the total transaction amount at the time of selling).

24,000 * (0.0015+0.001) = 60 yuan (a * * * handling fee and transaction tax when selling).

So Jim's net income:

4000-30-60=39 10 (yuan)