You're Spending 18% of Revenue on Marketing and Getting 6% Back — Track It Weekly

The Marketing Black Hole#

Dan runs a UK home furnishings eCommerce business. His monthly marketing budget: £12,000. Meta Ads: £5,000. Google Ads: £4,000. Email marketing (Klaviyo): £800 (platform + management). Instagram content creator: £1,200. Monthly revenue: £68,000. Marketing-to-revenue ratio: 17.6%. Dan knows these numbers. What he doesn't know: how much of the £68,000 revenue is attributable to each channel. His Meta Ads manager tells him ROAS is 4.2× (£5,000 spend generates £21,000 in tracked revenue). His Google Ads manager says ROAS is 5.8× (£4,000 generates £23,200). So Meta + Google = £44,200 tracked revenue. But total revenue is £68,000. Where does the other £23,800 come from? His email campaigns? Organic? Word of mouth? The Instagram content? He doesn't know. He continues spending the same allocation because he has no basis to change it. Possibly £3,000-4,000 of his budget is generating minimal return.

The Attribution Problem in Multi-Channel Marketing#

Marketing attribution is hard because customers touch multiple channels before buying: a customer sees a Meta Ad → doesn't buy. Searches Google → clicks a Google Ad → doesn't buy. Receives an email → buys. Who gets credit? Last-click attribution (standard in most ad platforms) gives 100% credit to the email. First-click gives it to Meta. Linear attribution shares it equally. Each ad platform shows its own ROAS using the attribution model most favourable to it. Meta's pixel says Meta drove £21,000. Google Analytics says Google drove £23,200. Both numbers are partially correct. Combined, they imply £44,200 from £9,000 spend. But your Shopify shows £68,000 total revenue. Platform-reported ROAS always exceeds reality. The true question is: on a week when you spend nothing on Meta, does revenue drop, and by how much?

AskBiz Weekly Marketing vs. Revenue Dashboard#

AskBiz connects to Meta Ads API, Google Ads API, and Klaviyo API — and compares spend to actual POS/Shopify revenue each week. The dashboard shows: (1) Total marketing spend by channel this week. (2) Revenue this week (from POS/Shopify — not platform-reported attribution). (3) Marketing-to-revenue ratio overall and by channel (to the extent attributable). (4) Week-on-week: when Meta spend was £5,000 vs. weeks when it was £3,000 — what was the revenue difference? (5) Email campaign days: on weeks with a Klaviyo campaign, revenue on campaign days vs. non-campaign days. This isn't perfect attribution — but it gives directional insight that platform self-reporting doesn't. It uses actual revenue from your POS, not the platforms' contested attribution models.

The Channel Experiment Method#

AskBiz enables controlled channel experiments by tracking weekly revenue alongside weekly spend by channel. Example experiment: Week 1 (baseline): Meta £1,200, Google £800, email £200. Revenue: £18,400. Marketing ratio: 12%. Week 2 (test): Meta £0, Google £800, email £200 (Meta turned off). Revenue: £14,100. Meta contribution estimate: £4,300. Week 3 (restore): Meta £1,200, Google £800, email £200. Revenue: £18,200 (confirms Week 1 baseline). This simple on/off test, tracked through AskBiz, gives a cleaner read of Meta's contribution than the platform's self-reported ROAS. Repeat for Google, email. Build channel attribution from revenue response data rather than cookie-based attribution. It's not perfect — but it's more actionable than platform-reported numbers.

Benchmarks: What Should Marketing Cost as a % of Revenue?#

Marketing-to-revenue ratio benchmarks by sector: eCommerce: 10-20% (highly variable by category). Retail (physical): 3-8% (lower because local, less digital acquisition). Restaurant: 3-6% (community marketing, loyalty focus). B2B services: 5-15%. SaaS: 25-40% (high acquisition cost justified by LTV). If your marketing ratio is above benchmark, you're either: (1) Growing fast and investing in acquisition (acceptable if LTV economics work). (2) Spending on channels with poor return (not acceptable — reallocate). AskBiz compares your marketing ratio to your sector benchmark and flags if you're materially above it for more than 4 consecutive weeks without corresponding revenue growth.

Reducing Marketing Spend Without Reducing Revenue#

The goal of weekly marketing ROI tracking is not to cut marketing — it's to reallocate from lower-ROI to higher-ROI activities. Common findings: (1) Email marketing has the highest ROI by far (platform cost is low; you're marketing to existing customers at near-zero acquisition cost). Under-investment in email is common. (2) Retention marketing (loyalty programme, reactivation campaigns) consistently outperforms acquisition in ROI. Yet acquisition gets most of the budget. (3) Google branded search (your own brand name) converts at very high rates but at very low volume. Shouldn't be starved of budget. Non-branded search has lower conversion, higher competition. AskBiz gives you the weekly data to have these conversations with your marketing team or agency — grounded in actual revenue, not platform dashboards.

• An SMB spending £3,500/week on Meta Ads, Google Ads, and email marketing — generating £18,000 in weekly revenue — is at 19.4% marketing-to-revenue ratio.
• The question is: which £3,500 is working and which is wasted?
• Without weekly attribution, you keep spending the same mix.