Answer:
$350 loss on the sale of 100 stocks
Step-by-step explanation:
the cost basis per stock = $19,250 / 500 = $38.50 per stock
then they sold 100 stocks at $35 per stock
gain/loss = (selling price per stock - cost basis per stock) x 100 stocks = ($35 - $38.50) x 100 = -$3,50 x 100 = -$350 or $350 loss