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Key financial metrics and KPIs for business health

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Quick Lube Shop Bookkeeping: The Per-Car Numbers That Separate Profitable Bays From Break-Even Ones

A quick lube earns its margin per car, not per markup. This guide shows how to cost bulk oil by the quart on every delivery, reconcile each tank book-against-stick weekly, book shrinkage and used-oil hauling as separate accounts, and review the five daily KPIs (car count, average ticket, add-ons per 100 cars, bay time, gross profit per car) against industry benchmarks such as 0.95 cars per labor hour, 80 percent gross profit on labor and 50 percent on parts.

mike

bookkeepingauto-repairsmall-business

AI Receptionists in 2026: What They Cost, What They Recover, and How to Book Them

Small businesses miss about 27% of inbound calls during business hours and 40-60% after hours, and 85% of first-attempt callers never call back. AI receptionists run $30-$80/month entry-level, $150-$400 for service businesses, and $800-$1,200+ for multi-location deployments. This guide gives the three-number ROI formula (missed calls × close rate × average job value), where the subscription belongs in your chart of accounts, and a monthly recovery tracker that ties AI-booked appointments back to actual invoices.

mike

aiautomationsmall-business

Customer Acquisition Cost (CAC): Formula, LTV Ratio, and Payback Period for Small Businesses

CAC is total sales and marketing cost divided by new customers acquired in the same period — $6,000 of spend across 30 customers is a $200 CAC. This guide covers what belongs in the numerator, how to pair CAC with gross-profit LTV (a 3:1 to 4:1 ratio is the practical small-business target) and payback period (under 12 months for SMB customers, up to 24 for enterprise), 2026 CAC ranges by business type, and seven ways to lower CAC without cutting customer volume.

mike

metricsgrowthprofitability

Return on Equity (ROE) Explained: What It Measures, What Counts as Good, and How to Break It Down

Return on Equity (ROE) divides net income by owner's equity — a 15% ROE means the business earned 15 cents per dollar of the owner's capital. This guide covers healthy benchmarks (12–15% baseline, 15–20%+ strong), the three-part DuPont breakdown of margin, asset turnover, and leverage, and the pitfalls — debt-inflated returns, negative equity, one-time items — that distort the ratio.

mike

financial-ratiosprofitabilitysmall-business

Inventory Turnover Ratio Explained: Formula, Industry Benchmarks, and How to Improve It

Inventory turnover ratio = COGS ÷ average inventory, and it shows how many times a business sells through its stock each year. This guide covers the formula, converting turnover to days sales of inventory, industry benchmarks from 2–4 turns (industrial parts) to 10–20+ (grocery), and why slow-moving stock costs 20–30% of its value annually to hold.

mike

inventoryfinancial-ratioscost-of-goods-sold
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