How much does this cost to the nearest dollar?

Goberco Under Deck Drainage System Long Roll, for 12'' Joist Spacing, 30 Mil Thick Black Trough Top Side, Down Site is White, Create Dry Below Deck Storage
- Each roll is 50' long x 13 1/4'' width (for 12'' joist spacing) x 30 mils thick - black astm heavy duty polyethylene - top side black, back side white or black - Easy to install and affordable goberco deck membrane + tape + downspout is about $ 2/s.f. - U.S. patent # z-folds allow this unique membrane to act as flashing + gutter between joists + funnel meaning less risk of leaks at ledger board and rim joist. - Save time and money no need

Price is $82.00
Price: $81.56