Wauvel
← All tools

Price / Volume / Mix Bridge

Reasoning

Revenue or margin moved — but why? Enter what you sold in two periods, line by line, and it splits the change into the three things that actually cause it: price (you charged more or less), volume (you sold more or fewer units), and mix (you sold a different blend of products). Add unit costs and it does the same for gross profit, isolating a cost effect too. New and dropped lines are handled cleanly, the bridge always ties out to the penny, and the download recomputes every effect as a live Excel formula. The decomposition QuickBooks won't do for you.

Revenue change

+$41,100

+21.5% · $191,500 → $232,600

Gross profit change

+$19,790

+18.7% · $106,000 → $125,790

Gross margin change

−1.3 pts

55.4% → 54.1%

What moved revenue

Last year — starting$191,500
Price
+$12,700
Volume
+$16,852
Mix
+$11,548
This year — ending$232,600

Revenue rose +$41,100, driven most by volume (+$16,852). volume added $16,852; price added $12,700; mix added $11,548. A positive mix means you sold more of your higher-value bags.

Your two periods

Product / lineLast yearThis yearΔ Rev
UnitsPriceCostUnitsPriceCost
$
$
$
$
−$4,000
$
$
$
$
+$27,000
$
$
$
$
−$1,700
new
$
$
$
$
+$19,800
Total12,500$1513,600$17+$41,100

How to read it. Enter what you sold in two periods — units, price, and (optionally) unit cost per line. Price is the price change on lines you sold in both periods. Volume is selling more or fewer total bags at your old average price. Mix is the rest — shifting toward higher- or lower-value bags, plus any new or dropped lines. The three always add up to the change exactly, and the download recomputes every effect as an Excel formula.

Want this on your real numbers? Wauvel builds it straight from your QuickBooks.

Get my free report →

More free tools

ForecastingExcel · .xlsx

Annual Operating Plan (AOP) Builder

The plan you set the year by: revenue built up stream by stream, cost of sales, and operating expenses by category — twelve months across, with gross profit and operating income falling out for you.

Open the tool →
ForecastingExcel · .xlsx

Recurring Revenue Model (SaaS / Subscriptions)

Build a subscription revenue forecast the way investors read it: new customers, ARPA, churn, and expansion drive a monthly MRR/ARR build, with the new → expansion → churn bridge tying out automatically. Industry presets for SaaS, memberships, subscription boxes, and retainers.

Open the tool →
ForecastingExcel · .xlsx

Capacity & Utilization Revenue Model

Forecast revenue for a capacity business: units × sellable slots × utilization × price, plus ancillary revenue. Industry presets for salons, restaurants, hotels, clinics, trucking/fleet, and professional services — tune capacity, occupancy, and rate and watch revenue (and RevPAR-style yield) build month by month.

Open the tool →
ForecastingExcel · .xlsx

Funnel / Transaction Revenue Model

Forecast a paid-acquisition business: spend → sessions → orders → revenue, with returns, repeat purchases, CAC, and contribution. Industry presets for ecommerce/DTC, marketplaces (take rate), and lead generation — see how spend and conversion translate into revenue month by month.

Open the tool →
ForecastingExcel · .xlsx

3-Statement Financial Model

Set a handful of assumptions — growth, margins, working-capital days, capex, financing — and project a fully linked income statement, balance sheet, and cash flow three years out, monthly. The balance sheet balances and cash ties, automatically.

Open the tool →
ForecastingExcel · .xlsx

13-Week Cash Flow Forecast

The rolling weekly forecast every CFO keeps: beginning balance, money in, money out, and the projected low point that tells you exactly when cash gets tight.

Open the tool →
ForecastingExcel · .xlsx

Cash Runway Calculator

How many months of cash you have — counted the way a CFO would. Set your cash on hand, what you collect, and your monthly burn, and it solves runway both ways: the flat-burn number, and the honest one that grows burn and collections forward to the month cash actually hits zero — or shows you're default alive. Then it prices the levers: trim burn, collect faster, and watch the runway move.

Open the tool →
ReportingExcel · .xlsx

Budget vs. Actual (Monthly P&L)

A month's P&L with plan set beside reality and the variance computed for you — so every number turns into feedback instead of weather.

Open the tool →
ReasoningExcel · .xlsx

CAC & LTV Calculator (Ecommerce Unit Economics)

The number every ecommerce founder needs and the books can't give you: how much you can afford to pay for a customer. Set your order value, margin, and repeat rate against your ad spend, and it solves CAC, a contribution-based LTV, the LTV:CAC ratio, payback period, break-even ROAS, and your maximum profitable CAC — with a sensitivity table showing how the ratio and payback move as CAC changes. Built for DTC and online stores.

Open the tool →
ReasoningExcel · .xlsx

Break-Even & Contribution Margin Calculator

The number every owner should know: how much you have to sell to cover your costs. Set price, variable cost, and your fixed costs, and it solves break-even in units and revenue — then shows your margin of safety, the volume to hit a profit target, and how break-even moves when you change price.

Open the tool →
ReasoningExcel · .xlsx

Financial Health KPI Tracker

The vital signs on one page — margins, current ratio, days-to-get-paid, the cash conversion cycle, runway — tracked month over month with the formulas already in.

Open the tool →