What did your retainer buy last month?
Five numbers from your last agency invoice. The math does the rest: your cost per shipped asset, the redo tax, and the annual run rate.
What did your retainer buy last month?
Pull up your last agency invoice and last month's sends. Five numbers, then the math.
Nothing here leaves your browser. The numbers are for you.
Last month’s invoice
Two numbers off the invoice itself. Platform fees like Klaviyo stay out of this: you pay those with or without an agency.
The number on the invoice before any extras.
Overages, hourly add-ons, rush fees. Zero if none.
What shipped
Count finished work that went live. Not drafts, not calendar slots, not “we’re on it.”
Sends that reached your list last month.
New automations or real revisions, not tweaks logged as work.
What you finished yourself
The part nobody invoices for.
Subject line rewrites count. If you touched it so it sounded like your brand, it is yours.
The math
per shipped asset
spent on work you finished yourself
annual run rate
Your verdict
Enter your numbers
Fill in the worksheet above. The verdict updates as you type.
The audit runs this against your account.
$300, one week. The same teardown against your actual Klaviyo account: every flow, every send, every gap costed. You keep one finished artifact generated in your brand voice. Credited toward an install within 90 days.
Request an AuditNot ready to talk? The other half of the question is who owns the engine. Take the Ownership Checklist