How much does this cost to the nearest dollar?

Neenah Paper Astrobrights Color Paper, 8.5 x 11, 24 lb/89 gsm, Warm Assortment, 500 Sheets
For projects that are out-of-this-world, Astrobrights color paper, in “Warm assortment, is the perfect choice. Creative geniuses and novices, alike, can create vibrant flyers, brochures, school projects, signs, coupons, posters, and paper crafting. And, since it's 20% thicker than standard paper, so you can achieve bleed-free results for single and double-sided documents. Display and store your creations with confidence, each sheet is acid and lignin-free, so they won't Yellow over time. Plus, this color copy paper saves money on pricey full-color ink. Just add

Price is $21.00
Price: $21.28