Description of the tool
The Estimated Budget Preparation Tool is a single‑page calculator that produces a short budget statement for one product line — sales value, purchases (cost) value, gross profit, expenses and net profit — from a handful of unit‑economics figures. It was originally built as a free, no‑login PHP form; this page keeps the same arithmetic engine but documents it and adds a printable PDF report.
Rather than asking for a full financial model, it asks for the numbers a product owner usually already knows: the selling price, the cost, the overhead allocated to the product, and the share of company assets tied up in producing it — then converts those into a forward‑looking budget target.
Objective
The goal is to let someone without an accounting background estimate a defensible sales and profit target for a product in under a minute, and to let them compare that target across three ambition levels — a conservative "Good" baseline, a "Very Good" middle target, and a "High Very Good" stretch target — before committing to a business plan, a pricing decision, or a loan application.
Mechanism / how it works
The calculation runs in three stages once the inputs pass validation:
Validate the inputs
The sale price must exceed the unit cost, and the asset share allocated to the product must exceed the unit cost. These two checks guard against a budget built on an already‑loss‑making product.
Derive a margin‑scaling ratio
The tool compares the sale price against half the unit cost to build a ratio that describes how efficiently price covers cost. This ratio is later used to scale the whole budget up from a single profit figure to full sales and purchases values.
Apply the targeted efficiency degree
Each of the three ambition levels (Good, Very Good, High Very Good) carries a fixed multiplier — 4.5, 3.5 and 2.5 respectively — applied to the asset share. A lower multiplier erodes less of the asset value, which is why "High Very Good" yields the largest profit target and "Good" the most conservative one.
Reconstruct the full statement
Net profit is recovered from the asset calculation, expenses are added back to reach gross profit, and the margin‑scaling ratio expands that gross profit into full sales and purchases values — while preserving the accounting identity Sales − Purchases = Gross profit and Gross profit − Expenses = Net profit.
Required data
Four figures, all per unit or per product share, plus one choice:
| Field | What to enter |
|---|---|
| Sale price | The selling price of one unit of the product. |
| Cost | The cost of producing or acquiring one unit of the product. |
| Expense share | The product's share of general expenses, including depreciation. |
| Asset share | The product's share of the business's total fixed and current assets. |
| Target degree | Good, Very Good, or High Very Good — how ambitious the budget target should be. |
Rule 1
Sale price must be greater than cost.Rule 2
Asset share must be greater than cost.Explanation of results
The tool returns a five‑line budget statement:
| Line | Meaning |
|---|---|
| Sales value | The total sales the budget targets for the product. |
| Minus purchases value | The total cost of the units needed to reach that sales figure. |
| Gross profit | Sales minus purchases — profit before overhead. |
| Minus expenses | The product's allocated share of general expenses. |
| Net profit | Gross profit minus expenses — the bottom line the budget is built to hit. |
Because the three degrees share the same price, cost and expense inputs, comparing them side by side shows how much of the profit target is really coming from a more ambitious use of the assets tied up in the product, rather than from selling at a different price.
Practical example
Take a product with a sale price of 150, a unit cost of 90, an expense share of 15, and an asset share of 200. Both validation rules pass (150 > 90, and 200 > 90), so the tool computes a full budget line for each degree:
| Line | Good | Very Good | High Very Good |
|---|---|---|---|
| Sales value | 100.00 | 120.83 | 162.50 |
| Minus purchases value | 60.00 | 72.50 | 97.50 |
| Gross profit | 40.00 | 48.33 | 65.00 |
| Minus expenses | 15.00 | 15.00 | 15.00 |
| Net profit | 25.00 | 33.33 | 50.00 |
Same product, same price and cost — but the "High Very Good" target asks the business to more than double its Good‑degree net profit by putting the same asset base to more intensive use. You can reproduce this example (or run your own numbers) in the calculator below.
Applications
- Setting a first‑pass sales and profit target for a new or existing product
- Sanity‑checking a proposed price against a cost and asset base before launch
- Preparing supporting figures for a business plan or a small loan application
- Teaching the relationship between price, cost, overhead and profit in a business or finance class
- Comparing a conservative vs. an ambitious budget scenario for the same product
- A quick feasibility check before building a full multi‑product financial model
Advantages
Free & instant
No login, no spreadsheet — a result in seconds.Only 4 inputs
Uses figures most product owners already know.Three ambition levels
Compare conservative to stretch targets at once.Internally consistent
Sales, purchases, gross and net profit always reconcile.Transparent formula
Every line can be traced back to an input, not a black box.Exportable
Download the finished budget as a PDF report to keep or share.Limitations
Single product
Does not model a multi‑product mix, shared capacity, or cross‑subsidy between products.No market signal
Ignores demand elasticity, competition, and seasonality — it budgets from cost and assets, not from expected demand.Fixed multipliers
The 4.5 / 3.5 / 2.5 efficiency multipliers are constants, not derived from the specific business's own history.No tax or financing
Excludes taxes, interest, and the cost of financing the assets involved.Depends on good inputs
Cost and asset‑share allocation must already be reasonably accurate — the tool cannot detect a mis‑allocated input.One‑shot, no storage
Nothing is saved between visits; each calculation is independent unless exported.Try the calculator
Enter your own figures below. All fields are required.