What the MainStem ROI Calculator Really Tells You—And Why It Might Be the Most Profitable Minute of Your Week
You’ve seen “ROI calculators” before—most feel like rigged slot machines: feed an email, magically get a giant number.
Ours is different: no email, four inputs, and a gut-punch you can verify line-by-line.
Why the Calculator Hurts (in a Good Way)
1. Hard-Cost Bleed
Rush freight, non-contract pricing, and “oops” duplicate orders add up. We benchmark your spend against 200+ operators and show the dollar drain you can’t see in QuickBooks.
2. Hidden Labor Burn
Finance teams average 18 hours a month matching invoices to POs that never existed. Multiply by hourly wage; see real cash evaporate.
3. Compliance Exposure Dollars
One missing COA can freeze inventory or trigger a recall. The calculator assigns a conservative dollar figure to that risk—because the state sure will.

The Four Inputs (That’s It)
- Monthly indirect spend
- Monthly direct (cannabis) spend
- Finance hours on invoice matching
- Number of licenses / locations
Hit Calculate. Get:
• Hard-cost savings estimate
• Labor savings estimate
• Risk-avoidance value
• Total monthly + annual margin recovery
Real-World Gut Checks
- Theory Wellness typed in their numbers, saw $14.2K/month in potential savings, then validated $13.8K post-implementation.
- Solar Cannabis punched in five licenses, saw $11K/month leak, now tracking $10.6K back to the bottom line.
“But Online Calculators Exaggerate.”
- Dataset: live, anonymized PO data from operators in 11 states.
- Benchmarks: refreshed quarterly; no fluffy multipliers.
- Transparency: we don’t even want your email—if the math is wrong, you close the tab.
Turn the Number Into Cash
- Run the 60-second calculator → MainStem ROI Calculator
- Screenshot the result (humor us).
- Book a 20-minute demo—we’ll point to the exact leaks in your workflow.
- Decide if handing that cash back to your margin beats nursing spreadsheets another quarter.
The calculator’s job isn’t to wow you. It’s to expose dollars you already lost—and show how fast MainStem can win them back.
MainStem — Procurement & Supply Chain Redefined.