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Free Pricing & Bundling Simulator — Model Revenue Impact for Your Ecommerce

Growthegy’s free pricing and bundling simulator (also useful as a price elasticity calculator and bundle margin calculator) models price changes, discounts, and bundles so you can compare revenue, margin, and a simple LTV proxy before you go live—no signup, runs in your browser.

By Growthegy Team

Who is this for? Operators modeling list-price tests, promos, or bundles who want revenue, margin, and LTV-proxy deltas before changing live storefront prices.

Citable benchmarks

Average ecommerce cart abandonment rate is 70.19%.

Source: Baymard Institute — Cart Abandonment Rate Statistics (2024)

Average ecommerce conversion rate is often ~2–3% (varies widely by industry and traffic mix).

Source: IRP Commerce — Ecommerce Market Data (Jan 2026)

Bundles can increase AOV by 20–30% on average when merchandising and margin are managed intentionally.

Source: Growthegy — Core Growth Strategies (2025)

Many ecommerce brands model discretionary SKU demand with price elasticities roughly between −0.5 and −3.0, depending on category and substitutes.

Source: Growthegy — operator modeling guideposts (2026)

A healthy LTV:CAC benchmark is often cited as 3:1 or higher—each customer worth at least three times acquisition cost before scaling paid spend aggressively.

Source: Common ecommerce unit-economics practice (see also Growthegy LTV content) (2026)

Key takeaways

  • Elasticity ties percent price moves to modeled unit volume—sanity-check the coefficient with past promos or category benchmarks before trusting a single run.
  • Discount mode trades margin per order for volume; bundle mode trades per-item revenue for AOV—watch total margin dollars, not just top-line revenue.
  • Sharable URLs and CSV export let you align finance and merchandising on the same assumptions before you change live prices.

What is a pricing and bundling simulator?

Q: What is a pricing and bundling simulator? A: A pricing and bundling simulator is a tool that models how price changes, discounts, and product bundles affect revenue, margin, and customer lifetime value. Why it matters: Testing scenarios before you change prices reduces risk and helps you choose strategies that support sustainable growth. Use the simulator above to compare options.

Growthegy publishes this free tool for ecommerce operators who want a fast, transparent alternative to opaque spreadsheets—whether you call it a discount ROI simulator, a bundle margin calculator, or a price elasticity calculator, the goal is the same: see base vs new revenue and margin side-by-side before you commit.

How price elasticity works (short explainer)

Price elasticity of demand measures how sensitive unit volume is to price. In this tool we use a simple linear rule: percent change in quantity ≈ elasticity × percent change in price. When elasticity is −1.5, a +10% price move implies about −15% volume. That is a modeling shortcut—real demand curves bend—but it is enough to compare directional risk on a SKU or category before you run an A/B price test.

Worked example (price increase)

Start at $100 and 1,000 units with elasticity −1.5. Raise price to $120 (+20%). Expected volume change is about −30%, so modeled units fall toward ~700. Revenue may rise or fall depending on how deep the drop is; the simulator shows both revenue and margin dollars so you can see whether the trade is worth it at your COGS.

Price change vs discount vs bundle (at a glance)

ApproachWhat movesTypical risk
Price changeList price and modeled units (elasticity)Elastic demand can erase revenue gains; inelastic demand lifts margin dollars.
Discount campaignPromo price and expected volume liftMargin per order falls; only works if incremental volume pays for the discount.
Product bundleBundle price, adoption, and bundle COGSAOV can rise while per-item margin compresses—watch total margin dollars.

How to use the simulator

  1. Choose Price change, Discount, or Bundle.
  2. Enter base metrics: current price, units per period, COGS, repeat purchase rate, and average customer lifespan (months).
  3. Fill scenario fields (new price + elasticity, or discount + volume lift, or bundle price + adoption + bundle COGS).
  4. Read Base scenario vs New scenario for revenue, margin %, AOV, and LTV proxy.
  5. Use the Impact block for revenue, margin, and LTV deltas—plus charts for quick visual comparison.
  6. Copy link, Copy results, or Export CSV to share assumptions; optional Get AI insight for a short narrative on your numbers.

Cost of growth and related tools

Pricing and margin directly affect your cost of growth: the more you earn per customer and per product, the more you can invest in acquisition. For customer-level value and payback, use our LTV Calculator. To see which products are winners, try the Product Profitability Analyzer. For the full set of free tools, see our tools hub. For store-level simulation (not the same as this pricing calculator), see the ecommerce simulator—it targets different learning goals than this pricing simulator.

People also ask

What is a price elasticity calculator?

A price elasticity calculator estimates how unit sales respond when you change price. Growthegy’s simulator uses your elasticity input with a linear approximation (% quantity change ≈ elasticity × % price change) to update volume, revenue, and margin.

What is a discount ROI simulator?

A discount ROI simulator compares extra volume from a promotion against the margin you give up on each discounted unit. Use the discount scenario here to set discount depth and expected volume lift, then check whether total margin rises or falls versus the base case.

How is willingness to pay related to this tool?

Willingness to pay (WTP) is the maximum price customers accept; elasticity and bundle adoption in this tool are practical stand-ins for WTP when you lack survey-based WTP curves. Calibrate elasticity from past price tests or category benchmarks, then iterate.

How is this different from the Product Profitability Analyzer?

The Product Profitability Analyzer focuses on per-SKU margin and cost structure; this simulator stresses scenarios—price paths, promos, and bundles—and shows revenue and LTV-style proxies side-by-side. Use both: diagnose SKU economics, then model go-to-market pricing moves here.

Can I share my scenario with a teammate?

Yes. Use Copy link to encode your inputs in the URL so a colleague opens the same numbers, or export CSV / copy a text snapshot for Slack or email.

Does raising price always improve margin dollars?

Raising price does not always improve total margin dollars because volume can fall. Margin percent on remaining units may rise while aggregate margin falls if demand is elastic—check the Impact block for both margin percent and total margin change.

What is an ecommerce bundling simulator?

An ecommerce bundling simulator models orders where some customers buy a bundle instead of single SKUs. Growthegy’s bundle mode blends bundle and single-item revenue and COGS so you can see AOV, margin, and the simple LTV proxy versus selling only individual units.

What should I watch after I model a discount?

After modeling a discount, watch refund rate, return rate, and whether new customers repurchase at full price. Pair this tool with the LTV Calculator and your post-promo cohort reports so short-term lift does not hide long-term margin erosion.

Frequently asked questions

What is a pricing and bundling simulator?

A pricing and bundling simulator is a calculator that estimates how price changes, discounts, and bundles affect revenue, gross margin, and a simple customer LTV proxy. Growthegy’s free simulator runs in your browser so you can compare a base case and a “new” case before you commit to a price test.

Is this pricing simulator free?

Yes, this pricing simulator is free with no signup. Growthegy publishes it alongside other free ecommerce tools such as the LTV Calculator and Product Profitability Analyzer on growthegy.com/tools/.

How do I calculate price elasticity of demand?

You calculate price elasticity as the ratio of percent change in quantity sold to percent change in price. In this simulator, you enter an elasticity coefficient (often negative, e.g. −1.5): the tool applies your price change and elasticity to estimate new unit volume, then recomputes revenue and margin.

What is a good bundle discount percentage?

A good bundle discount depends on margin, attach rate, and inventory goals; many brands aim for enough discount to lift AOV without wiping out contribution margin. Use the bundle scenario to set adoption, items in bundle, and COGS so you can see whether a bundle price still clears your target margin.

Will raising prices reduce revenue?

Raising prices can increase or decrease revenue depending on how much volume drops. With elastic demand, a higher price often reduces units enough that revenue falls; with inelastic demand, revenue rises. The price-change scenario shows revenue and margin side-by-side so you can stress-test your elasticity assumption.

How do bundles affect LTV?

Bundles affect LTV mainly through higher average order value and, if customers repeat, higher revenue per customer over their lifespan. This tool approximates LTV as AOV × repeat purchase rate × customer lifespan in months—so when bundles lift AOV, the modeled LTV rises unless repeat behavior changes.

What is a bundle margin calculator?

A bundle margin calculator estimates profit after COGS when customers buy a fixed set of items at a bundle price instead of à la carte. Growthegy’s simulator includes a bundle mode with adoption rate and per-unit bundle COGS so you can compare margin and revenue against selling items individually.

How can I tell if my prices are too low?

If your modeled margin is thin at current volume, small cost shocks or ad inefficiency erase profit, or competitors with similar quality charge materially more, your prices may be too low. Run a price-increase scenario with a conservative elasticity to see whether modest lifts could improve margin without collapsing volume.

Does this replace a financial model or spreadsheet?

No—this simulator is for directional planning, not audited forecasts. Use it to align teams on assumptions, then validate with historical elasticity, cohort data, and a spreadsheet or BI tool for inventory, cash timing, and channel mix.

What should I do after using the Pricing & Bundling Simulator?

After modeling scenarios, stress-test winners with the Product Profitability Analyzer, review customer-level economics with the LTV Calculator, and run Profit Diagnosis for a broader view of growth and margin leaks across your store.

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