A company estimates that ordering costs are $2.00 per order, picking costs are $1.00 per unique item ordered, packing costs are $0.07 per item, and return costs are $40.00 per return. A customer orders $8,000 worth of goods with direct costs of $6,200. The customer places 70 orders, orders 24 unique items, 940 total items, and makes 7 returns. What is the customer profit (loss)?

a) $1,800

b) $509.80

c) $1,290.20

d) $7,490.20