Asset Profitability Calculator
Thinking about buying a new asset for your fleet, but not sure it will earn its keep? The Profit Calculator is a what-if tool that turns a handful of assumptions — purchase price, daily rate, how often it rents — into clear answers: how much it nets each month, when it pays for itself, and how busy it needs to stay to break even. Change any number and every result updates instantly, so you can test scenarios before you spend a rupee.
This is a planning tool, not a report. Nothing you type is saved — the calculator runs entirely in your browser, and closing the page clears your inputs. It doesn’t read your real orders or inventory; it’s a sandbox for modelling one hypothetical asset at a time.
Who Can Use It
The calculator lives under Reports → Profit Calculator in the left menu. You need the Profit Calculator (read) permission (profit_calculator.read) to open it. If you don’t see it in the menu, ask an administrator to grant that permission on your role.
All money fields use your organization’s currency symbol automatically, so the numbers match the rest of Rentablez.
The Layout at a Glance
The page is split into two halves:
- Left — the control panel where you enter your assumptions (Acquisition, Revenue, and cost items).
- Right — Performance Insights where the results appear: four headline cards, a cumulative cash-flow chart, and a detailed breakdown.
You never press “Calculate” — the right side recalculates the moment you change anything on the left.
Entering Your Assumptions
Step 1 — Acquisition
These three fields describe what the asset costs you and what it’s worth at the end.
| Field | What to enter |
|---|---|
| Purchase Price | What you pay to buy the asset. |
| Useful Life (Months) | How many months you expect to rent it out before retiring or selling it. |
| Resale Value | What you expect to sell it for at the end of its useful life (enter 0 if none). |
Step 2 — Revenue
Describe how the asset earns.
- Daily Rental Rate — your standard per-day charge.
- Monthly Utilization — a slider from 0% to 100% for how much of the month the asset is out on rent. 40% means it’s rented roughly 12 days out of 30.
- Avg Duration (Days) — the typical length of one booking. Next to this field the calculator shows turns per month (how many separate rentals that works out to), so you can sanity-check your assumption.
Why average duration matters. Shorter bookings mean more “turns” per month, and each turn triggers your per-turn variable costs (cleaning, prep, delivery). A high-turnover asset can be busy yet less profitable once those repeat costs add up.
Step 3 — Variable Costs (Per Turn)
These are costs you incur each time the asset goes out and comes back — cleaning, prep, a delivery loop, and so on.
- A starter line (for example “Cleaning & Prep”) is already there.
- Type a name and an amount for each cost.
- Click Add Item to add more lines, or the trash icon to remove one.
The calculator multiplies these by your turns per month, so they scale with how often the asset rents.
Step 4 — Fixed Costs (Monthly)
These are costs you pay every month regardless of usage — storage, insurance, financing, and the like. Add them the same way: name, amount, Add Item to add more, trash icon to remove.
Reading the Results
The Four Headline Cards
Across the top of Performance Insights sit four summary cards. Each has a small help icon you can hover for a one-line definition.
| Card | What it tells you |
|---|---|
| Monthly Net | Estimated profit each month after all variable and fixed costs. A green “Profitable” or red “Loss Making” tag shows the verdict at a glance. |
| Lifetime ROI | Return on investment over the whole useful life, as a percentage, with the total profit figure beneath it. |
| Payback Period | How many months of net profit it takes to earn back the purchase price. Shows ∞ if the asset never pays back at the current numbers. |
| Break-Even Util. | The utilization level the asset must hit to cover its running costs and recover its value over its life. It compares this to your current utilization and flags Profitable or Loss. |
If costs outweigh what the asset can earn per day, Break-Even Util. reads Impossible (>100%) — no amount of bookings will make that scenario profitable. That’s your cue to raise the daily rate or cut costs.
The Cash-Flow Chart
The Cumulative Cash Flow Analysis chart plots your running position month by month. It starts below zero (you’ve just spent the purchase price) and climbs as monthly profit accumulates. The point where the line crosses zero is when the asset has paid for itself. Any resale value is added at the end of the useful life.
Use the Projection dropdown at the top right to change the time window:
- Useful Life (matches your Useful Life months)
- 1 Year, 2 Years, 3 Years, or 5 Years
The Break-Even Point card beside the chart restates this in words — for example “Month 14” or “Never” — with a note on whether you recover your investment within the asset’s life.
Detailed Breakdown
Below the break-even card, the Detailed Breakdown lists the monthly math line by line — Monthly Revenue, Monthly Fixed Costs, Variable Costs, and the resulting Net Margin percentage — so you can see exactly where the money goes.
How the Numbers Are Worked Out
Click How calculations work? near the top of the control panel to open a reference panel with the exact formulas. In plain terms:
- Monthly revenue is your daily rate times the number of days the asset is rented (30 days × utilization).
- Variable costs are your per-turn costs multiplied by the number of turns that month; fixed costs are added on top.
- Monthly net profit is revenue minus those combined costs.
- Lifetime ROI projects that monthly profit across the useful life, adds resale value, subtracts the purchase price, and expresses the result as a percentage of what you paid.
- Payback period divides the purchase price by monthly net profit.
- Break-even utilization finds the usage level that covers your fixed costs plus a monthly slice of the asset’s cost (purchase price minus resale, spread over its life).
These are estimates for planning. The calculator assumes steady utilization and a simple straight-line spread of the asset’s cost. Treat the output as a directional guide for buying decisions, not as accounting. For book-value depreciation on assets you already own, use the depreciation register instead.
A Typical Workflow
- Open Reports → Profit Calculator.
- Fill in Acquisition for the asset you’re considering.
- Set a realistic Daily Rental Rate, Utilization, and Avg Duration.
- Add the Variable and Fixed costs you’ll actually incur.
- Read the four cards — is Monthly Net positive and is Payback Period comfortably inside the useful life?
- Nudge the utilization slider up and down to see how sensitive the result is, and test lower rates to find your floor.
- Switch the Projection window to see the long-term picture, then decide.