How much does this cost to the nearest dollar?

Rubberseal Liquid Rubber Waterproofing and Protective Coating - Roll On White (1 Gallon, White)
Liquid Rubber Waterproofing and Protective Coatings Product Insulating, Ceramic Properties Great for Roofs and RV Roofs EPA Energy Star Rated, Resistant to Aging and UV Exposure Low VOC, Excellent Elongation Spread Rate 60 sq ft/gal at 20 imperial mils Material Rubber, Brand Rubberseal, Color White, Style Protective, Weight 10 Pounds, Dimensions LxWxH 8 x 8 x 8 inches, Compatible Material Ceramic, Rubber, Water Resistance Level Waterproof, Form Liquid, Manufacturer Inflow Solutions, Part FR, Dimensions 8 x 8 x 8 inches, model number Is Discontinued No, Size 1 Gallon,

Price is $81.00
Price: $80.99