Tom receives a commission of 13.4% on the first $5,000 of his net sales, 14.1% on the next $3,000, and 15% on any additional net sales for the month, and is entitled to drawings of up to $1750 per month. During February, Toms gross sales amounted to $11,456 and sales returns and allowances of $512. What is Toms gross commission for the month? If Tom drew $1,235 in February, what is the amount due to him?