Per‑unit labour savings math

A simple automation pitch is circulating online: replace one repetitive warehouse job, save roughly five figures a year, and move more boxes with the same floor space. (bls.gov) The labor side of that math starts with hourly pay plus benefits, not wages alone. The Bureau of Labor Statistics said production, transportation, and material-moving jobs averaged $18.33 an hour in retail trade and $23.63 an hour in wholesale trade in its 2025 fourth-quarter employer-cost data. (bls.gov) At 2,080 hours a year, those wage-only figures come out to about $38,000 to $49,000 before payroll taxes, overtime, turnover, training, and vacancy costs. That is why social posts can land on annual savings estimates in the $8,000 to $20,000 range even when they assume only part of one role is actually eliminated or reassigned. (bls.gov) The throughput side is different math. It asks how many orders, cartons, or lines a system can move in an hour after conveyors, scanners, sorters, or packing equipment remove waiting time and handoffs. (bcg.com) Boston Consulting Group said leading consumer businesses have reported 20% to 50% improvement in service levels and 25% to 50% reductions in fulfillment costs from warehouse automation, but it also said many pilots fail when companies overbuild or automate the wrong workflow. (bcg.com) Vendor case studies show the same pattern in narrower tasks. UNEX said one Overton’s project lifted efficiency 20% to 30%, and Precision Automation said a wholesale distribution customer increased order throughput and reduced labor requirements after automating audit, labeling, packing, and shipment flow. (unex.com ) (precisionautomationinc.com) Large operators have been making the same argument in public filings and briefings. Supply Chain Dive reported in October 2023 that United Parcel Service was expanding automation in unloading, sortation, and irregular-package movement, and Chief Executive Officer Carol Tomé said 57% of United States hub volume was first processed through automated facilities, up from 53% in 2022. (supplychaindive.com) The catch is that “per replaced role” is rarely literal. Boston Consulting Group said warehouse returns depend on matching the machine to the task and the building, and many companies miss targets when pilots do not scale or when demand shifts after installation. (bcg.com) Labor savings also do not always mean layoffs. United Parcel Service said its newer systems were aimed at repetitive and physically demanding tasks such as trailer unloading and small-package sorting, while analysts tied the same push to pressure to reduce labor hours after higher union labor costs. (supplychaindive.com) That leaves the viral rule-of-thumb where most warehouse automation decisions end up anyway: count the loaded labor cost, count the hourly volume gain, and test whether the machine saves enough on a real shift to pay back its purchase. (bls.gov) (bcg.com)