Running an online store by the numbers.https://thegrowthbutler.com/enhttps://thegrowthbutler.com/blog/roas-vs-profit/https://thegrowthbutler.com/blog/roas-vs-profit/Two weeks with the same ROAS can leave very different profit. Why ROAS misleads, and the per-order number that tells you whether your ads actually pay.Tue, 03 Nov 2026 00:00:00 GMTpaid-adsshopifygrowthhttps://thegrowthbutler.com/blog/break-even-roas/https://thegrowthbutler.com/blog/break-even-roas/Your ads can show a 3x ROAS and still lose money. Here's how to calculate break-even ROAS from your real margins, what a good number looks like, and how to lower it.Sat, 31 Oct 2026 00:00:00 GMTpaid-adsgrowthhttps://thegrowthbutler.com/blog/contribution-margin-ecommerce/https://thegrowthbutler.com/blog/contribution-margin-ecommerce/Contribution margin tells you if selling more makes you richer or just busier. Learn the formula, CM1 vs CM2 vs CM3, real e-commerce examples and what a healthy margin looks like.Fri, 30 Oct 2026 00:00:00 GMTgrowthshopifyhttps://thegrowthbutler.com/blog/blended-roas-vs-platform-roas/https://thegrowthbutler.com/blog/blended-roas-vs-platform-roas/Meta and Google each claim credit for your sales, and together they often claim more than you sold. Here is how to use both numbers without fooling yourself.Tue, 27 Oct 2026 00:00:00 GMTpaid-adsgrowthhttps://thegrowthbutler.com/blog/weekly-ecommerce-report/https://thegrowthbutler.com/blog/weekly-ecommerce-report/Five numbers, one threshold each and one decision. How to build a Monday report you actually act on, and how to stop building it by hand.Tue, 20 Oct 2026 00:00:00 GMTgrowthai-agentshttps://thegrowthbutler.com/blog/first-48-hours-after-first-purchase/https://thegrowthbutler.com/blog/first-48-hours-after-first-purchase/Whether a first-time buyer comes back is often decided before the parcel arrives. Four things to get right in the two days after checkout.Tue, 13 Oct 2026 00:00:00 GMTretentionshopify