Cutting floor staff saves a little and loses a lot

The sale nobody records

A woman walks into a clothes shop on a Saturday afternoon. She finds a shirt she likes, but not in her size. She looks around for someone to ask. The two people on the floor are both busy with other customers. After a few minutes she puts the shirt back and leaves.

The store's system records nothing. There is no bill and no return, so there is no trace of her at all. At the end of the day the store's numbers look exactly as they would have if she had never walked in.

This is the most expensive blind spot in physical retail, and it is bigger than most managers think. A study by MIT's Sloan School of Management found that a third of customers who ran into a problem in apparel stores could not find anyone to help them, and that about 6% of all possible sales were lost to a lack of service ¹. In one apparel chain the researchers studied, the stores were capturing only 85% to 95% of the sales they could have made ¹.

The gap has not closed. In Zebra's 2025 global shopper study, more than half of shoppers said they had left a store without everything they came to buy ².

Chart 1More than half

The sale a store never sees

Shoppers who left a store without everything they came for, Zebra global shopper study 2025; and MIT's study of apparel stores

52%of shoppers left a store without everything they came to buy

A thirdof apparel shoppers who hit a problem could not find anyone to help

6%of all possible sales were lost to a lack of service

Why the spreadsheet keeps saying cut

If staff matter so much, why do so many retailers run their stores thin? Because the spreadsheet is built to see one side of the trade.

Wages are a clear, certain number on every month's statement. The sales an extra person would have made are invisible, because they are made up of shoppers like the woman with the shirt. Researchers at Wharton describe the most common industry practice as setting each store's staff in proportion to its forecast sales ⁴. The MIT team found the flaw in that: staffing on past sales misses the sales that were already lost because the store was short of people ¹. A store that is understaffed sells less, so next year's plan gives it fewer people, and so on.

The Wharton professors call this a downward spiral: temporary cuts in people or hours tend to become permanent, until there is little or nothing left ⁵.

Chart 2

How a thin store gets thinner

Why staffing to last year's sales keeps cutting the people who make the sales

1Too few people on the floor in the busiest hours

2Shoppers who need help leave without buying

3Sales come in below what the store could have done

4Next year's staff plan is set on those lower sales

→↓

↓

←↓

↑↺

the downward spiral

The damage is concentrated in the hours that matter most. A study of 41 stores in a large retail chain found that every one of them was systematically understaffed during a 3-hour peak period ³. That is when the most shoppers are in the store, and when a missing salesperson costs the most.

What happens when you put people back

The best evidence comes from retailers that actually tested it.

Marshall Fisher, Santiago Gallino and Serguei Netessine at Wharton worked with a retailer to estimate how much revenue each store gained from extra staff, tested the change in a few stores, then rolled it out. Across 168 stores over six months, revenue rose 4.5% and annual profit rose by nearly $7.4 million ⁴. That profit figure is after paying for the extra hours.

Their second finding is just as useful: the effect of staffing on sales varies greatly from store to store ⁴. A rule that sets every store's staff as a fixed share of its sales will overstaff some stores and starve others. The answer is to measure store by store.

It is easy to see why. In a large store with a steady weekend crowd, one more person may turn many browsers into buyers. In a small store where the manager can see every customer from the counter, the same person may add little. Size, layout, category and the skill of the people already there all change the answer, which is why one national ratio cannot be right everywhere.

Chart 3

Staff it right, keep it steady, train it: each one sold more

What happened when real retailers changed how they staff, schedule and train

+7%Median sales, when Gap made rosters stable and predictable
28 stores, randomised experiment

+6%An employee's sales that month, for every hour a month of simple online training
Wharton research

+4.5%Revenue, after staffing each store to its own needs
168 stores over six months

It is not only how many, but how steady and how trained

At Gap, researchers ran a randomised experiment in 28 stores to test something even simpler than adding hours: making schedules predictable. Staff got their rosters further ahead, and last-minute changes were cut. In the stores with stable scheduling, median sales rose 7% compared with their peers, and labour productivity rose 5% ⁶.

The most surprising part was where the chaos came from. It was not unpredictable customers. Inaccurate deliveries, last-minute changes to promotions and visits by head-office leaders were the major sources of schedule changes ⁶. In other words, much of the instability on the shop floor is created by the business itself, and can be fixed by it.

The roster chaos did not come from customers. It came from deliveries, promotions and head-office visits.

Training pays back in the same way. In the Wharton research, every hour a month an employee spent on simple online training lifted that employee's sales by about 6% that month ⁵. And when staff were trained on one product, their sales did not rise for that product alone but across the whole category ⁵. A salesperson who understands one thing well sells everything around it with more confidence.

Two retailers that bet on the floor

When Hubert Joly became chief executive of Best Buy in 2012, its quarterly profits had just fallen 91% ⁷. The usual turnaround would have cut stores and people. Joly instead built the recovery around the staff in blue shirts, on the view that the company's advantage had always been the service its sales associates gave, and that this only mattered if they truly wanted to help ⁷. Associates were asked to be an "inspiring friend" to customers, solving their problems rather than pushing products ⁷.

In India, Shoppers Stop has spent years building a service of personal shoppers, staff who guide a customer through the store. In 2018 the service contributed 13% of the company's sales ⁸. In early 2022 the company said personal shoppers brought in 10% of sales, and that customers who shopped with one spent about three times as much per bill as its loyalty members ⁹. By the year to March 2026, personal shoppers recorded more than Rs 1,200 crore of sales, a contribution of 26% ¹⁰.

Chart 4Doubled since 2018

Personal shoppers now bring in a quarter of Shoppers Stop's sales

Personal shoppers' share of company sales, as stated by the company

13%

10%

26%

2018Early 2022FY26

Neither company treated the people on the floor as a cost to minimise. Both treated them as the reason to visit a store at all.

Being there is not the same as being useful

There is a catch. Putting more people on the floor does little if they cannot answer the question in front of them.

Zebra's 2025 study found that 88% of store associates struggle to get timely help or information, up from 82% a year earlier ². Shopper satisfaction with stores has slipped for two years in a row ². Customers are asking questions that staff cannot answer quickly: is this in stock, in another size, at another branch?

Chart 5Two years down

Shoppers are a little less happy every year, in stores and online

Shoppers satisfied with their experience, Zebra global shopper study

The way staff are managed matters as much. Great Place To Work's 2026 study of Indian retail found that almost three-fourths of retail roles involve dealing directly with customers ¹¹. It also found burnout among retail staff at 24%, but only half that where employees feel their manager is approachable and genuinely interested in them ¹¹. A tired, unsupported salesperson on the floor is only slightly better than none.

What to do on Monday

1. Count the people who leave without buying. For one week, count everyone who walks in during the busiest hours and compare it with the bills. The gap is the size of the opportunity.
2. Staff the peak, not the average. Move hours out of the quiet mornings and into the three busiest hours of the day and the week.
3. Fix the roster from the top. Publish rosters two weeks ahead and protect them from last-minute changes caused by deliveries, promotions and visits.
4. Train one hour a month, on the product. Short and regular beats long and rare. Start with the products that pull the rest of the category along.
5. Put the answer in their pocket. Every salesperson should be able to check stock, sizes and other branches from the floor without walking away from the customer.
6. Test before you decide. Add hours in a few stores for a month and compare them with similar stores. Your own numbers will settle the argument faster than any report.