Commerce seller toolkit · pricing · acquisition · fulfilment · profit
Before you scale sales, know what every order can afford.
Calculate pricing floors, discount damage, bundle margin, customer acquisition cost, return reserves, tax, shipping and advertising ceilings—then connect those numbers to marketplace and store profit workflows.
Seller money-problem map
Twenty-four calculator routes into decisions with direct cash impact.
Acquisition and pricing tools appear first because they sit closest to the buy-or-scale decision. Marketplace reconciliation, fees, returns, inventory and cashflow stay connected below. Amazon- and Shopify-specific traffic can enter through dedicated seller hubs.
Amazon seller acquisition cluster
Profit, PPC, settlement, inventory and cashflow.
Use the dedicated Amazon seller tools page when search intent is marketplace-specific.
Shopify store acquisition cluster
Profit, payout, CSV, catalogue and storefront work.
Use the dedicated Shopify hub for store-specific economics and operational exports.
Break-even ROAS & Max CAC Calculator
Turn product, fulfilment, platform and return costs into a maximum acquisition cost and break-even ROAS.
Open free toolWinning Product Score Calculator
Score contribution economics, demand evidence, trend, creative potential, saturation risk and shipping simplicity before testing.
Open free toolDiscount Profit Margin Calculator
See post-discount selling price, profit, margin and contribution lost versus full price before launching a promotion.
Open free toolTarget Selling Price Calculator
Backsolve a price from product cost, shipping, percentage fees and the contribution margin you want to preserve.
Open free toolBundle Profit Margin Calculator
Compare individual retail value with a discounted bundle price, combined product cost and bundle shipping.
Open free toolEcommerce Blended CAC Calculator
Include paid media, creative, agency and acquisition software so customer acquisition cost is not understated.
Open free toolEcommerce Return Cost Calculator
Turn return rate into reverse shipping, processing, inventory loss and an expected cost reserve per original order.
Open free toolEcommerce Tax & VAT Calculator
Add an entered tax/VAT rate to a net price or extract the tax portion from an inclusive customer price.
Open free toolDimensional Weight Shipping Calculator
Compare actual package weight with volumetric weight using an editable carrier divisor before requesting a rate.
Open free toolFree Shipping Threshold Calculator
Estimate the basket value needed to absorb average shipping cost while preserving target contribution profit.
Open free toolShopify Payout Reconciler
Match orders to payment or transaction rows, isolate processing fees, unmatched references and unexplained payout differences.
Open free toolAmazon SKU Profit CSV Auditor
Upload one normalized CSV, map revenue, fees, PPC, returns and COGS, then rank SKUs from worst to best estimated contribution.
Open free toolAmazon True Profit Calculator
Model inbound costs, storage, aged inventory, ads, discounts, returns and unrecoverable stock—not just headline FBA fees.
Open free toolAmazon Return Cost Calculator
Turn return rate into expected processing, return-shipping, refund-admin and unrecoverable-inventory cost.
Open free toolAmazon FBA vs FBM Calculator
Compare contribution profit using your own FBA, carrier, pick-pack, packaging, storage and return assumptions.
Open free toolAmazon Cashflow Reorder Calculator
See whether cash left after fees, ads, refunds, COGS and operating costs can fund the next inventory order.
Open free toolAmazon Inventory Carrying Cost Calculator
Estimate storage, aged-inventory and capital carrying cost before slow stock silently destroys margin.
Open free toolAmazon FBA Profit Calculator
Model price, COGS, fulfilment, referral fees, ads, returns and other variable costs.
Open free toolAmazon Break-even ACoS Calculator
Estimate the advertising-cost ceiling before a unit reaches zero contribution profit.
Open free toolAmazon TACoS Calculator
Compare total ad spend with total revenue and track the ratio over time.
Open free toolAmazon Reorder Point Calculator
Turn daily sales, lead time and safety-stock days into a reorder threshold.
Open free toolLanded Cost Calculator
Combine factory cost, freight, duty, insurance, inspection and prep into unit cost.
Open free toolShopify Profit Margin Calculator
Estimate true order contribution after product, fulfilment, payment, ad and return costs.
Open free toolWooCommerce Profit Margin Calculator
Model product-level profit using your own payment, fulfilment, ad and refund assumptions.
Open free toolQuick workspace · five seller decisions
Need the simple answer first? Run it here.
Model one order
Defaults are only starting assumptions. Replace them with the fees, fulfilment, returns and costs from your own store or marketplace statement.
Live scenario
Estimated net profit / order
$10.29
Estimated net margin: 25.7%
- Percentage fee
- $6.00
- Return exposure
- $1.20
- Profit before ads
- $14.29
- Ad cost entered
- $4.00
This is a planning estimate, not an official fee quote. Marketplace, payment, fulfilment, tax, refund and advertising rules vary by account, category and country.
Shareable result
$10.29 estimated net profit per order on Amazon marketplace. Sharing includes only the displayed result label and value; raw calculator inputs and local detail are not added to the shared URL or analytics event payload.
Free layer
Diagnose one decision or one export now.
No fake live-data claims. Enter the numbers you know or map CSV exports and expose the specific discrepancy or cost driver.
Paid layer
Automate repeated decisions.
The commercial boundary is retained mappings, joined exports, saved models, repeated checks, multi-store history, monitoring, alerts and exports—not arithmetic.
Subscription signal
Charge when the workflow repeats.
When a seller rebuilds the same acquisition, pricing, payout, profit, inventory or return model every week, that repeated workflow is the paid-software boundary.
See current paid products