Business Rescue Tools publishes the formula, inputs, limits, interpretation and source framework for every calculator. The tools are management diagnostics—not substitutes for financial statements, accounting policy, tax advice, legal advice, valuations or assurance work.
Jackie McCauley’s experience operating Prime Money Services, mobile-money and Ecobank Xpress Point workflows, remittance support, Jackie’s Nursery & Floral and Prime E-Sport Lounge Group businesses is used to define the operational question, required records, common failure modes and recommended next action. It does not replace accounting standards or create a universal benchmark.
The site separates three evidence layers: formula authority from primary accounting or control references; operational analysis from named first-hand field notes; and future empirical findings that will require a published sample and method. See the operator field notes and evidence classification policy.
Jackie McCauley is the named author and operational editor. Her experience is documented on the author profile and linked to a public LinkedIn identity. Formula verification is an internal editorial check against the visible formula, implementation tests and cited primary sources. The site does not claim independent CPA, attorney or licensed-adviser review unless a page explicitly identifies that reviewer.
Each calculator has a page-specific revision note. Material changes are recorded in the changelog, and suspected errors can be submitted through the corrections process. Dates are not advanced simply to create an appearance of freshness.
Last substantive methodology review: August 5, 2026
Each calculator starts with a defined operating question, uses inputs that a small business can obtain from ordinary records, applies transparent arithmetic and returns a decision-support result. Monetary inputs must use one currency and one time period. Percentages must be entered on the scale shown. Results should be recalculated when actual records replace estimates.
| Calculator area | Reference framework | How it informs the tools | What it does not mean |
|---|---|---|---|
| Cash flow and survival | IFRS IAS 7; U.S. GAAP ASC Topic 230 | Distinguishes cash movements and emphasizes timing and liquidity evidence. | The forecasts are not a statutory statement of cash flows. |
| Customer balances and receivables | IFRS 9; IFRS 15; U.S. GAAP ASC Topics 326 and 606 | Provides context for receivable collectibility, expected credit losses, contracts and revenue recognition. | Priority scores and collection estimates are not ECL models or revenue-recognition conclusions. |
| Pricing, margin and break-even | Managerial accounting; IFRS 15/ASC 606 for revenue context | Uses contribution, cost-volume-profit and margin relationships for internal decisions. | GAAP and IFRS do not prescribe a selling price, target margin or universal break-even formula. |
| Equipment and asset returns | IAS 16, IAS 36, IFRS 16; U.S. GAAP ASC Topics 360 and 842 | Provides context for asset cost, useful life, impairment indicators and lease obligations. | ROI and payback are not depreciation, impairment, fair-value or lease-accounting calculations. |
| Mobile money and staff cash control | COSO Internal Control—Integrated Framework; GSMA agent-network guidance | Supports segregation of duties, evidence, reconciliation, liquidity management and exception handling. | The risk bands do not establish fraud, legal liability or regulatory compliance. |
Low, medium, high and critical bands are editorial operating thresholds intended to prioritize attention. They are not accounting materiality judgments, credit scores, solvency opinions or legal conclusions. Comparison calculators may use neutral labels such as “rent costs less” or “costs are close” instead of forcing a risk classification.
HTML field limits block impossible percentages and extreme values. JavaScript cross-field rules detect contradictory relationships, such as payments above the customer price, zero-value invoices, selling price at or below variable cost for break-even, resale value above purchase price, or trade-in value above replacement cost. The browser calculator is tested with valid defaults, boundary cases and selected invalid combinations. Validation reduces input mistakes; it cannot verify that the underlying business records are true.
Cash-flow guidance should be read as an operating forecast, not a statement of profit. The central discipline is timing: cash must be available before an obligation becomes due.
Primary inputs: Currency, Cash available now, Confirmed incoming cash, Essential operating costs, Debt and overdue obligations, Minimum safety reserve.
Use: Whether confirmed cash resources cover essential obligations and the minimum reserve needed to keep operating.
Primary inputs: Currency, Cash runway in months, Overdue receivables as % of monthly sales, Current gross margin %, Debt payments as % of monthly revenue, Unresolved cash/control issues.
Use: Which combination of runway, overdue receivables, margin pressure, debt burden and unresolved control failures deserves the first management response.
Primary inputs: Currency, Available cash, Average monthly cash collected, Average monthly cash costs.
Use: How many months the business can continue if cash collections and cash costs remain near the entered averages.
Primary inputs: Currency, Monthly essential costs, Urgent one-time obligations, Available cash, Confirmed 90-day inflows.
Use: The minimum additional funding needed to protect a 90-day operating window under the assumptions entered.
Primary inputs: Currency, Cash available for payroll, Confirmed receipts before payday, Payroll due.
Use: Whether cash available plus receipts due before payroll can cover the full payroll obligation.
Primary inputs: Currency, Normal monthly revenue, Expected revenue drop %, Monthly essential costs, Available cash reserve.
Use: How long reserves could support the business after the selected revenue decline if essential costs remain at the entered level.
Receivable guidance separates earned or billed revenue from cash actually collected. Contract terms, disputes, collectibility and local recovery law remain decisive.
Primary inputs: Currency, Cash gap to close, Total collectible overdue balances, Expected collection success %.
Use: The collection rate required to close the cash gap and whether the expected success rate is enough.
Primary inputs: Currency, Total order or contract price, Deposit received, Additional payments received, Upfront direct costs, Risk buffer %.
Use: The unpaid customer balance and whether the deposit covers upfront direct costs plus a deliberate protection buffer.
Primary inputs: Currency, Invoice balance, Days overdue, Annual cost of cash %, Collection time spent (hours), Owner/staff hourly cost, Estimated lost contribution from cash shortage, Normal monthly revenue.
Use: The estimated economic cost of waiting for a specific invoice and the urgency of collection relative to normal monthly revenue.
Primary inputs: Currency, Materials or supplier costs, Pre-delivery labor cost, Other non-refundable costs, Protection buffer %, Total customer price.
Use: The minimum upfront amount needed to cover nonrecoverable commitments and the chosen protection buffer.
Primary inputs: Currency, Outstanding balance, Average monthly revenue, Days overdue, Customer risk score, Broken payment promises.
Use: Which overdue invoice deserves first action after value is normalized to business size instead of raw currency.
Primary inputs: Currency, Outstanding balance, Payment per month, Annual cost of carrying the balance %, Maximum acceptable months.
Use: How long the proposed installments will take and whether the carrying period exceeds management’s acceptable limit.
Pricing guidance uses contribution and managerial-accounting relationships. GAAP and IFRS do not prescribe a selling price or a universal break-even threshold.
Primary inputs: Currency, Fixed costs, Selling price per unit/job, Variable cost per unit/job, Expected units/jobs sold.
Use: How many units or jobs must be sold before operating contribution covers the selected fixed costs.
Primary inputs: Currency, Original selling price, Variable cost per sale, Discount %, Expected units at full price.
Use: How the proposed discount changes unit contribution and how many additional sales are needed to recover lost contribution.
Primary inputs: Currency, Total unit cost, Selling price.
Use: The actual markup on cost and gross margin on selling price for the same item or job.
Primary inputs: Currency, Variable cost per unit/job, Overhead allocation per unit/job, Target profit margin %.
Use: The selling price required to achieve the selected margin after unit variable cost and overhead allocation.
Primary inputs: Currency, Current selling price, Variable cost per sale, Proposed non-negative price increase %, Current units sold.
Use: The new contribution per sale, required post-increase volume and maximum volume decline that preserves current contribution.
Primary inputs: Currency, Selling price per unit/job, Variable cost per unit/job, Units/jobs sold, Fixed costs for the period, Target operating margin %.
Use: The contribution per sale, operating profit at the entered volume and the operating margin compared with the target.
Equipment guidance compares cash generation, utilization and ownership cost. Financial-reporting carrying amounts, depreciation, impairment and leases may require separate professional calculations.
Primary inputs: Currency, Net equipment investment, Monthly equipment revenue, Monthly equipment cash costs.
Use: Whether the estimated payback period fits the business’s risk tolerance, financing term and expected useful life.
Primary inputs: Currency, Purchase and setup cost, Expected resale value, Monthly revenue at 100% practical utilization, Monthly operating and maintenance cost, Utilization %.
Use: The annual return on net investment at the utilization level the business can realistically achieve.
Primary inputs: Currency, Net equipment investment, Annual fixed ownership costs, Variable cost per booking, Expected annual bookings, Target annual return %.
Use: The minimum average booking rate needed to cover annual fixed cost, variable booking cost and the selected return on investment.
Primary inputs: Currency, Monthly financing cost, Monthly storage and insurance, Monthly maintenance reserve, Revenue at full practical capacity, Actual utilization %, Contribution margin %.
Use: The monthly and annual economic burden of owning capacity that is not being used.
Primary inputs: Currency, Monthly rental cost, Expected months of use, Purchase and setup cost, Monthly ownership cost, Expected resale value.
Use: Which option has the lower estimated cash cost over the same expected period of use.
Primary inputs: Currency, Immediate repair cost, Old equipment monthly operating cost, Replacement purchase cost, Trade-in or resale value, New equipment monthly operating cost, Comparison period in months.
Use: Which option has the lower expected cost over one common comparison period before reliability and strategic factors are considered.
Mobile-money guidance is an internal-control diagnostic. It emphasizes separate custody accounts, independent evidence, percentage-based materiality and prompt exception handling.
Primary inputs: Currency, Cash available, E-money float available, Expected daily cash-out demand, Expected daily cash-in demand, Peak-demand buffer %.
Use: Whether each active side of liquidity covers buffered daily demand; zero-demand sides are treated as not applicable.
Primary inputs: Currency, Expected closing balance, Actual closing balance, Known pending adjustments, Materiality threshold.
Use: The unexplained residual after documented adjustments and its percentage of expected closing value.
Primary inputs: Currency, Opening physical cash, Opening e-money/float, Cash received from customers, Cash paid to customers, Float/e-money received, Float/e-money sent, Actual closing physical cash, Actual closing float, Materiality threshold.
Use: The gross shortage exposure after cash and float are reconciled separately and compared with a percentage-based materiality threshold.
Primary inputs: Currency, Opening balance, Verified inflows, Verified outflows, Actual closing balance, Materiality threshold.
Use: The unexplained variance and its size relative to expected value or account activity, not an arbitrary currency amount.
Primary inputs: Currency, Cash assigned to staff, Float/wallet value assigned, Unresolved transfers or shortages, Customer/staff receivables controlled, Verified cash and float handed over.
Use: The amount of business value still exposed after verified handover is deducted from assigned and unresolved balances.
Primary inputs: Currency, Unsupported transfer total, Related fees and charges, Expected additional recovery % of remaining exposure, Amount already recovered.
Use: The estimated loss still exposed after verified recovery and a conservative additional recovery assumption on the remaining amount.
Editorial lead and formula owner: Jackie McCauley, founder of Business Rescue Tools and small-business operator. Jackie McCauley is accountable for input selection, formula presentation, editorial thresholds, source maintenance and corrections. No CPA, attorney, actuary or licensed financial-adviser review is claimed unless a named professional is explicitly identified on the page.
Material corrections are documented by updating the page, date-modified field and formula specification. Questions or evidence of an error can be submitted through the contact page.
Last reviewed: August 5, 2026.
Negative target margins, negative return targets and negative contribution margins are rejected because they contradict the stated purpose of profitable-price, rental-rate and idle-cost tools. Sales volume must be at least one where a per-period margin is calculated, and markup requires a cost greater than zero.
Currency-neutral priority tools normalize monetary exposure against business revenue, expected balances or transaction activity. Reconciliation tools reject a negative expected closing balance because that usually signals missing funding, incorrect signs or incomplete records rather than a valid surplus.