Amazon cut the price of avocados by 50 percent at the Whole Foods Market in Seattle’s South Lake Union neighborhood. (GeekWire Photo / Taylor Soper)

Whole Paycheck? Not anymore. Based on our research, “3/4 Paycheck” might be a better nickname for Whole Foods Market following Amazon’s initial price cuts.

A team of GeekWire reporters surveyed prices on selected items this weekend at three Seattle-area stores, then returned to the same locations when they opened this morning to see exactly how much prices are dropping. Amazon is completed its $13.7 billion acquisition of the Austin, Texas-based grocery chain on Monday, dramatically expanding the Seattle-based tech giant’s brick-and-mortar footprint, and is already making changes.

The Whole Foods location in South Lake Union, just blocks from Amazon’s headquarters in Seattle, had a slightly different look on Monday. (GeekWire photo / Taylor Soper)

We found an average price reduction of 25 percent on our shopping list of a dozen items. The price cuts ranged from a 50 percent reduction in Hass avocados, from $2.99 to $1.49 each; to a more modest 10 percent drop in 365 Everyday Value organic butter, from $4.99 to $4.49 each.

In the middle of the range, the price of organic responsibly-farmed Atlantic Salmon dropped by 29 percent, from $13.99/pound to $9.99/pound.

Bottom line, a shopping list that totaled nearly $80 this weekend fell to less than $60 as of Monday morning.

It’s a wake-up call for the grocery industry, clearly showing Amazon’s ambitions to bring its low-price strategy to its new brick-and-mortar grocery operations. Grocery stocks including Kroger, Walmart, Costco and others are all down this morning on the news.

To be clear, our list is not representative of the savings Whole Foods customers will see on the typical receipt. Our shopping list consisted largely of produce, meat, and staples that Amazon had signaled would be reduced in price. Many other prices in the store — yes, including the popular $8.99/pound hot bar — remain the same. But Amazon has said it will continue to cut prices on more products going forward, in addition to other changes like Prime membership integration at checkout.

Prices may vary slightly by store within a specific region, based on our observations.

Inside the Whole Foods at South Lake Union on Monday morning, just steps away from Amazon’s headquarters in Seattle, there was signage notifying customers of Whole Foods’ new parent.

There was also a table full of Amazon Echo devices under the banners of “Farm Fresh” and “Pick of the Season.”

This Echo booth was spotted at the South Lake Union Whole Foods store near Amazon’s Seattle headquarters. (GeekWire Photo / Taylor Soper)

A video crew was also inside conducting interviews and getting shots of the newly-discounted items.

Similar branding and another Echo display was visible at the Whole Foods location in Seattle’s Roosevelt neighborhood.

An Echo display at a Whole Foods Market in Seattle’s Roosevelt neighborhood. (GeekWire Photo / Taylor Soper)

Amazon is focused largely on Whole Foods store brands and items on the outer ring of the store, including Whole Foods 365 Everyday Value items, where prices can more easily be adjusted on the fly. The rapid changeover makes it clear that the Whole Foods and Amazon teams were coordinating in advance at least to a limited extent, which is unusual when corporate acquisitions are still pending.

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