How much does this cost to the nearest dollar?

Xantrex XPower 1,500 Watt Portable Powerpack
Product Description XPower Powerpack 1500 supplies up to 1500 watt household electricity. Amazon.com The XPower Powerpack 1500 is a portable power system that produces household electricity for products rated at 1500 watts or less. A clean and quiet alternative to a generator, the XPower Powerpack integrates a 60 Amp/hour AGM battery with a inverter and produces a surge. This system is built to run a range of appliances such as a standard size refrigerator and microwave oven, and office equipment such as a computer, monitor, and fax machine. The XPower Powerpack 1500 is designed for ultimate portability. See the product specifications. View the generator in greater detail. A convenient design

Price is $582.00
Price: $581.93