How much does this cost to the nearest dollar?

EverBond RV Roof Waterproof Coatings - RV Roof Sealant - Solar Reflective Sealant, for Trailers, Campers, Roof Repairs, and Leak Repairs. Easy to Apply Titanium White 4.75 Gallon Pail
Give yourself a new roof for a fraction of the cost. Everbond liquid rubber coating brings old RVs roofs or trailer roofs back to life! Unlike other liquid rubber on the market Everbond creates a seamless waterproof membrane for your project. Using the newest technology in roofing coating. Use anywhere you might need a watertight, flexible sealant. Coat a entire roof or use it to fill cracks, leaks, seams, vents, skylights, and so much more. Everbond can be applied by rolling painting or spraying and goes on smooth, sealing

Price is $319.00
Price: $319