Work out cost per customer instantly with clear inputs, formula shown and shareable results.
Two figures matter and they answer different questions. Fully loaded cost divides everything by customer count and is the right basis for pricing. Marginal cost excludes shared overhead and is the right basis for deciding whether to accept another customer — which is why a deal that looks unprofitable on fully loaded cost can still be strongly accretive.
Cost per customer
fully loaded = total cost / customers; marginal = variable cost / customers; contribution = revenue per customer - marginal cost
Fully loaded plus target margin, otherwise growth never covers the shared platform. Marginal cost sets the floor below which a deal destroys value.
Anything that would still be running with one fewer customer: control planes, monitoring, CI, baseline capacity. Per-tenant storage and compute are variable.