Nummbas Blog

Guides and insights for direct-to-consumer business owners who want to understand their numbers.

Ecommerce ROI: How to Calculate and Track

Ecommerce ROI = (Net Profit / Total Investment) x 100. Learn how to calculate ROI for your online store, see benchmarks by business stage, and find practical ways to improve your return.

11 min readGuides

Shopify Profit Margin Calculator (2026)

Most Shopify stores keep 10 to 20 percent net profit after all costs. Use this guide to calculate your real profit margin per product and per order with step-by-step examples.

11 min readGuides

ROAS vs ROI: What Each Metric Tells You

ROAS measures ad revenue per dollar spent. ROI measures total profit after all costs. Learn when to use each, see a worked example, and understand why you need both.

10 min readGuides

How to Increase ROAS: 10 Proven Methods

Learn how to increase ROAS with 10 proven methods for Meta Ads, Google Ads, and TikTok Ads. Actionable tactics to get more revenue from every dollar of ad spend.

12 min readGuides

Ecommerce Reporting: What to Track and How Often

Good ecommerce reporting tells you what happened, why, and what to do next. This guide covers the reports every store owner needs and how often to review them.

12 min readGuides

Triple Whale vs Lifetimely vs Nummbas Compared

A side-by-side comparison of Triple Whale, Lifetimely, and Nummbas. See how they differ on attribution, profit tracking, pricing, and which one fits your DTC business.

12 min readComparisons

WooCommerce Analytics: Track Sales and Profit

WooCommerce gives you basic sales reports but not profitability. This guide covers what to track, built-in tools, and how to get the full financial picture.

11 min readGuides

How to Build an Ecommerce Dashboard That Works

Most ecommerce dashboards show too much and explain too little. Here is how to build one that shows what matters: profit, cash flow, ad performance, and action items.

11 min readGuides

Best Ecommerce Accounting Software (2026)

The best ecommerce bookkeeping software and accounting software for online sellers. Compare 10 tools with pricing, features, and recommendations by business stage.

14 min readComparisons

Ecommerce Bookkeeping: A Complete Guide

Ecommerce bookkeeping tracks revenue, costs, and fees across multiple platforms. This guide covers what to track, common mistakes, checklists, and when to hire help.

14 min readGuides

Ecommerce Metrics: The KPIs That Actually Matter

The ecommerce metrics and KPIs that tell you if your store is healthy, growing, and profitable. Includes formulas, benchmarks, and what to do when each metric changes.

16 min readGuides

Amazon Seller Profit Margins: What to Expect

Amazon sellers typically keep 10 to 20 percent net profit after all fees. This guide breaks down referral fees, FBA costs, and margins by product category.

11 min readEcommerce Insights

Most Profitable Products to Sell Online (2026)

The most profitable products to sell online have high margins, low shipping costs, and repeat buyers. Here are the top categories with real margin ranges.

10 min readEcommerce Insights

Shopify Fees Breakdown: What You Actually Pay

Shopify takes 2.4% to 2.9% plus $0.30 per sale through Shopify Payments, on top of a monthly subscription. This guide breaks down every fee so you know what you actually pay.

13 min readEcommerce Insights

What Is ROAS? A Complete Ecommerce Guide

ROAS (Return on Ad Spend) equals revenue from ads divided by cost of ads. A good ROAS for ecommerce is 3 to 5. Learn the formula, benchmarks by platform, and how to improve your ROAS.

14 min readGuides

Ecommerce Analytics: What to Track and What Actually Matters

Most ecommerce dashboards show dozens of numbers but never tell you which ones matter. This guide breaks down the metrics that actually affect your bottom line and how to track them without a data team.

9 min readGuides

How to Grow Your Ecommerce Business Without Burning Cash

Growth without profit is just expensive failure. This guide covers the five financial levers that actually scale an ecommerce business and how to pull them without running out of money.

9 min readGuides

Shopify vs. WooCommerce: Which Is Better for Your Bottom Line?

Shopify and WooCommerce are the two most popular ecommerce platforms, but they cost very different amounts to run. This guide compares them from a financial perspective so you can pick the one that makes you the most money.

10 min readComparisons

How to Start an Online Store: The Financial Checklist Nobody Gives You

Most guides on starting an online store focus on picking a platform and uploading products. This one covers the financial side: what it actually costs, how to price for profit, and when you can expect to break even.

10 min readGuides

How to Automate Your Ecommerce Finances (So You Stop Guessing)

You did not start a business to spend hours in spreadsheets. This guide covers what ecommerce finance tasks can be automated, what tools handle them, and how to stop manually tracking numbers that should update themselves.

8 min readGuides

Best Ecommerce Platforms in 2026: A Business Owner Comparison

Choosing an ecommerce platform is a financial decision, not just a technical one. This guide compares the most popular platforms based on what they actually cost to run and how they affect your profit margins.

11 min readComparisons

How AI Is Changing Ecommerce Finance (And What It Means for Your Store)

AI in ecommerce is not just chatbots and product recommendations. The biggest impact for store owners is in financial visibility: spotting problems faster, understanding trends without a data team, and getting answers in plain English.

8 min readEcommerce Insights

The Financial Strategy Most DTC Brands Get Wrong

Most direct-to-consumer brands focus on growing revenue and hope profit follows. It does not. This guide covers the five financial mistakes that quietly kill DTC businesses and what to do instead.

9 min readEcommerce Insights

How to Stop Wasting Ad Spend Before You See the Monthly Report

Most store owners find out their ads stopped working days or weeks after the damage is done. Smart alerts notify you the moment ROAS drops, ad spend spikes, or margins shrink so you can act before the budget is gone.

9 min readGuides

Best Triple Whale Alternatives for DTC Brands in 2026

Triple Whale is popular but expensive and attribution-heavy. Here are five alternatives that focus on what most DTC owners actually need: knowing whether they are making money.

10 min readComparisons

Best Lifetimely Alternatives for DTC Brands in 2026

Lifetimely is a solid profit tracker, but it is Shopify-only and its pricing scales with order volume. Here are five alternatives for brands that need more flexibility or broader platform support.

10 min readComparisons

Best TrueProfit Alternatives for DTC Brands in 2026

TrueProfit is a popular Shopify profit tracker, but it is Shopify-only and charges per order. Here are five alternatives for brands that need broader platform support or flat pricing.

10 min readComparisons

Subscription Metrics for Ecommerce: How to Know If Your Recurring Revenue Is Actually Profitable

Subscriber count does not tell you if your subscription model is working. This guide covers the metrics that matter for physical product subscriptions and when a subscriber is losing you money.

8 min readEcommerce Insights

What a Fractional CFO Does for a Direct-to-Consumer Brand (And When You Need One)

You are outgrowing spreadsheets but cannot justify a full-time finance hire. This guide explains what a fractional CFO does, what software can handle instead, and when you need the human.

8 min readGuides

Ecommerce Benchmarks 2026: Profit Margins, Ad Spend, and Growth Rates by Category

How do your margins, ad spend, and growth rate compare to other stores in your category? This guide breaks down the benchmarks that matter for ecommerce businesses in 2026.

10 min readEcommerce Insights

How Tariffs Are Changing Ecommerce Margins in 2026 (And What to Do About It)

Tariff rates on imported consumer goods jumped from 2% to over 20%. This guide explains what changed, how it affects your product margins, and three ways to respond.

8 min readEcommerce Insights

5 Signs Your Direct-to-Consumer Business Is Growing Revenue but Losing Money

Revenue growth can mask profitability problems. Here are five warning signs that your business is bringing in more money but keeping less of it.

6 min readEcommerce Insights

How to Pay Yourself as a Direct-to-Consumer Business Owner

Most direct-to-consumer owners either take too much and scramble, or take too little and burn out. This guide explains how to calculate a safe monthly owner draw.

7 min readGuides

How Direct-to-Consumer Owners Can Manage Cash Flow Without a Finance Team

You do not need a CFO to keep your business from running out of money. This guide covers cash runway, why revenue up and cash down happens, and a weekly cash check routine.

10 min readGuides

How to Track Profitability for Your Direct-to-Consumer Business

Most store owners look at revenue and think they are doing well. This guide walks through the five cost categories that eat into profit and how to track them in one place.

8 min readGuides

How to Split Your Ad Budget Across Meta, Google, and TikTok (With Real Numbers)

There is no universal formula for splitting your ad budget across platforms. But there are clear signals that tell you where each dollar works hardest for your specific business.

9 min readGuides

MER vs. ROAS: Which Return on Ad Spend Metric Should You Actually Track?

ROAS measures return on ad spend for one channel. MER measures your entire marketing effort. This guide explains when to use each metric, how to calculate them, and how your break-even point changes based on your margins.

7 min readEcommerce Insights

What Is Blended ROAS? Your True Return on Ad Spend Across All Channels

Every ad platform over-reports its own return on ad spend. This guide explains why the numbers from Meta, Google, and TikTok do not add up, and how to calculate your true blended return on ad spend.

6 min readEcommerce Insights

Return on Ad Spend Formula: How to Calculate Break-Even ROAS for Your Store

The ROAS calculation formula is simple: revenue from ads divided by cost of ads. But most store owners use it wrong. This guide shows you the return on ad spend formula, how to calculate break-even ROAS from your real margins, and a step-by-step return on ad spend calculator.

7 min readGuides

The 7 Hidden Costs Eating Your Ecommerce Profits (That Do Not Show Up in Shopify)

Your Shopify dashboard shows revenue and orders but hides the costs that quietly drain your margins. Here are seven profit killers and where to find them.

9 min readEcommerce Insights

LTV to CAC Ratio: How to Know If Your Customers Are Worth What You Paid to Get Them

For every dollar you spend to get a customer, how many dollars do they bring back over their lifetime? This guide explains how to calculate, interpret, and improve your LTV to CAC ratio.

8 min readEcommerce Insights

Shopify and QuickBooks: Why Your Numbers Never Match (And How to Fix It)

If your Shopify revenue and QuickBooks deposits never line up, you are not alone. This guide explains the five root causes and how to reconcile them without losing your mind.

9 min readGuides

Contribution Margin for Ecommerce: The Number That Actually Tells You If You Are Making Money

Revenue and gross margin do not tell the full story. Contribution margin shows what is left after product cost, shipping, and ad spend, and it is the number that matters most.

8 min readEcommerce Insights

The Real Cost of Selling a Product Online (COGS Mistakes That Kill Your Margins)

Most store owners undercount their cost of goods sold. This guide covers everything that belongs in COGS, what does not, and how miscategorized costs inflate your reported margins.

8 min readEcommerce Insights

Accrual vs. Cash Accounting for Ecommerce: Which One Shows You the Truth?

Cash accounting and accrual accounting show different profit numbers for the same month. This guide explains why, which one is more accurate, and when your accountant will ask you to switch.

8 min readGuides

How to Read Your Ecommerce Profit and Loss Statement (Without an Accounting Degree)

A profit and loss statement does not have to be confusing. This guide walks through every line of an ecommerce P&L in plain language so you know exactly where your money goes.

9 min readGuides

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