Amazon has officially sealed the deal with Whole Foods, and the promised price cuts are already hitting grocery stores. Bananas for 49 cents a pound, anyone? Marked down from 79 cents, that's more comparable to other supermarket chains. The organic variety goes for 69 cents a pound in a Manhattan store, down from Sunday's price of 99 cents a pound. Just on Thursday, Amazon announced that all Whole Foods customers would immediately see "lower prices on a selection of best-selling staples across stores," after completion of the merger. This includes discounts on Whole Foods' Whole Trade bananas, organic avocados, organic large brown eggs, organic "responsibly farmed" salmon and tilapia, organic baby kale and baby lettuce, animal-welfare-rated 85 percent lean ground beef, creamy and crunchy almond butter, organic Gala and Fuji apples, organic rotisserie chicken, "365 Everyday Value" organic butter and more, according to Amazon's press release.

Prices at Whole Foods post-Amazon merger Item Price on Aug. 25 Price on Monday, Aug 28 % Change Whole Trade Bananas 79 cents/lb 49 cents/lb -38% Organic Whole Trade Bananas 99 cents/lb 69 cents/lb -30% Organic Gala Apples $2.99/lb $1.99/lb -33% Organic Fuji Apples $3.49/lb $1.99/lb -43% Organic Avocados $2.99 a piece $1.99 a piece -33% Organic Baby Lettuces $3.99 a package $3.49 a package -13% Organic Baby Kale $3.99 a package $3.49 a package -13% Organic Cage-free Large Brown Eggs $4.29 per 12 count $3.99 per 12 count -7% Organic Responsibly Farmed Salmon $14.99/lb $9.99/lb -33% Organic Responsibly Farmed Tilapia $11.99/lb $7.99/lb -33% Animal-welfare-rated 85% Lean Ground Beef $6.99/lb $4.99/lb -29% Creamy/Crunchy Almond Butter $7.99 a jar $6.99 a jar -13% Organic Rotisserie Chicken $13.99 $9.99 -29% “365 Everyday Value” Organic Butter $5.29 per 16 oz. stick $4.49 per 16 oz. stick -15%

Note: This chart is based on a CNBC survey of prices at New York's Upper East Side Whole Foods location. These are all of the items mentioned in Amazon's Friday press release. Notably, many of the items Amazon said it was discounting require a "frequency of purchase," Raymond James analyst Aaron Kessler told CNBC on Friday. They aren't items like paper towels that you can stockpile, he added. "You have to buy a lot." The Whole Foods store on New York's Upper East Side visited Monday also featured a display of Amazon Echo and Dot devices, marked down to $99.99 and $44.99 each, respectively. A banner hung above the table reading, "We're Growing Something Good. Whole Foods Market + Amazon." Time will tell what other Amazon merchandise starts to pop up in the grocery locations.

Lauren Thomas | CNBC

Nonetheless, industry watchers still wonder just how much Amazon is willing to foot the grocery bill at Whole Foods. "There are certain areas where [Amazon] can cut, but there is a limit. If you cut too much, you will destroy the operating profit for Whole Foods," Kessler said. CNBC visited the Whole Foods location on Friday, before the deal's closing.

At that time, organic avocados were selling for $2.99 apiece, organic baby kale and lettuces were priced at $3.99 a container, organic Gala apples were $2.99 per pound, and organic Fuji apples were $3.49 per pound. Whole Foods' 365-branded almond butter sold for $7.99 a jar, and animal-welfare-rated 85 percent lean ground beef was $6.99 per pound. Come Monday, baby lettuce containers were reduced to $3.49, organic Gala apples were selling for $1.99 a pound and jars of 365-branded almond butter were a dollar cheaper, at $6.99 apiece. Amazon most significantly reduced the price of organic Fuji apples, by 43 percent, from $3.49 a pound to $1.99.

Lauren Thomas | CNBC

Organic avocados, a crowd favorite, dropped to $1.99 each. Regular Hass avocados now retail for $1.49 apiece Other noticeable discounts in the New York Whole Foods location included a stick of organic unsalted butter selling for $4.49, down from $5.29 per 16 ounces. A 25-ounce jar of Whole Foods' own organic tomato sauce was cut to $2.79 from $2.99. As promised, organic large brown eggs, animal-welfare-rated 85 percent lean ground beef, salmon, tilapia and chicken were all also on sale. Antibiotic-free rotisserie chickens were $1 cheaper, selling for $7.99 for a whole bird and $4.99 for a half.

Lauren Thomas | CNBC

CNBC caught sight of other markdowns on organic milk, spring water, coconut milk and prepackaged walnuts. An employee in the store said more than 300 items were being discounted, but not everything would be as evident with flashy, orange stickers. That being said, shoppers in search of big bargains should come to Whole Foods with a little more knowledge of prices at other chains for comparison.

"[Amazon is] making organic foods accessible to all walks of life in this country," Greg Fleishman, co-founder of baking mix brand Foodstirs, told CNBC in an interview Friday. "It's amazing." "The whole intent of this [merger] is to retain loyalists, but also to attract an entirely new consumer who was held back because of price," added Fleishman, who has also worked for Kashi and Coca-Cola. "Whole Foods' mission is to not be exclusionary," he said. "A partnership with Amazon has exploded Whole Foods' mission."

Lauren Thomas | CNBC

One Whole Foods employee confirmed to CNBC that all of Whole Foods' existing staff will receive a 10 percent discount on Amazon.com the first week after the merger. Another mentioned how "last minute" everything was thrown together. A survey of Whole Foods employees across various locations in New York over the weekend found that many had no idea about the merger or the discounts coming Monday. Representatives from Amazon and Whole Foods didn't immediately respond to CNBC's request for comment.

WATCH: Amazon officially owns Whole Foods; here are the products that are getting marked down