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Designing Permission
Designing Permission

For years, much of interaction design has started from a fairly simple premise: the user decides…

0 posts
0 posts

You enter an Instagram profile. There is a photo, a biography, hundreds of followers and followed…

When the machine seems
When the machine seems

The GPS suggests a route. The analytics system highlights an anomaly. A platform recommends an…

Payback by channel calculator

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Payback by channel calculator

Compares three channels based on CAC, monthly margin per customer and the months needed to recoup the acquisition investment.

Payback comparison

Channel A

Channel B

Channel C

What it helps you interpret

Payback speed

Cash flow

Not all channels put the same pressure on cash flow. Payback shows how long each source takes to recoup the sales investment.

CAC in context

Efficiency

A high CAC may be acceptable if monthly margin offsets it quickly. If not, the channel becomes burdensome even if it closes sales.

Defensible comparison

Priority

It helps you decide which channel to scale first when the goal is not simply growth, but growth with reasonable payback.