How much does this cost to the nearest dollar?

Schluter Systems Ditra Heat Flooring Installation Kit Touchscreen WiFi Thermostat, Heated Cable 120V 73 Sq Ft, Underlayment Uncoupling Membrane 100.8 Sq Ft (12x 8.4 Sq Ft Heat Mat)
Schluter Systems DITRA Heat kit provides warm floor systems with unique combinations for various sizes, voltage, and applications. Even though it is mostly used with flooring underlayment for tiles, vinyl plank, laminate flooring and etc., it is also applicable to warm up walls in areas such as showers, kitchens, and bedrooms with strong Ditra insulation and waterproofing features. The WiFi unit with GFCI and remote control (phone app) easily becomes a second thermostat for home being extremely user friendly and energy efficient. Using a warm

Price is $684.00
Price: $683.53