Total value of stocks purchased = 600*41 = $24,600
The commission paid = 1% = 0.01 *24,600 = $246
Total purchase cost = $24,600 + $246 = $24,846
Sale price = $41.75
Total sale proceeds = 41.75*600 = $25,050
There is a flat commission of $30 on the sale
Total sale proceeds after commission = $25,050 -$30 = $25,020
Net proceeds = Total sales vale - total purchase cost
Net proceeds = 25,020 - 24,846 = $204 (profit)
Since we have a profit, the answer is sale proceeds are positive