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The real numbers behind Shopify profit.

Practical writing on Shopify profitability, ad spend aggregation, multi-store reporting, and the hidden costs most dashboards miss. Written by the team building custom profit dashboards at Perch.

Ad spend

What a "good" CPA actually means for a multi-store Shopify brand

A $40 CPA tells you nothing on its own. Here is how to set profit-aware CPA targets per store and per product, with the contribution-margin math and worked examples.

12 March 2026·10 min read
Pricing

Discounts and gross margin: the cost most Shopify reports hide

Shopify shows discounts as a revenue line. The real hit lands in gross margin, and stacking, free shipping, and loyalty programs make the gap 1.5 to 2.5 times bigger than reported.

15 April 2026·10 min read
Profitability

How to calculate true profit on a Shopify store (with formulas)

Most Shopify reporting shows revenue and gross margin, then quietly ignores the 4 to 6% of real costs buried in payment fees, chargebacks, and refunds. Here is the full formula, step by step.

12 August 2025·11 min read
Comparisons

Triple Whale vs Perch: the 3-year math

A $5M Shopify brand pays Triple Whale around $33,870 over three years. A Perch build for the same brand costs $12,500 once. Here is the full math, and where Triple Whale still wins.

18 January 2026·9 min read
Ad spend

What breakeven ROAS really means (and how to calculate it per product)

Most brands use one store-wide breakeven ROAS. That is useful for reporting and useless for campaign decisions. Here is how to calculate BER per SKU, with worked examples.

23 September 2025·10 min read
Cash flow

How much is Airwallex actually holding? The 13% nobody mentions

Airwallex typically holds around 13% of your payouts for 75 days. For a $1M per month brand, that is about $130,000 sitting unavailable at any given time. Here is what this means for your real cash position.

5 November 2025·8 min read