What did the outage actually cost?
The incremental impact of an outage on a pay-per-session business, after accounting for sessions still served on other equipment or recaptured later. For planning and record organization — not a legal damages opinion.
Calculation method & worked example
How this is calculated
Fictional worked example: 20 affected sessions − 7 served elsewhere − 5 recaptured = 8 lost. At $40 price less $5 avoided cost, contribution lost is 8 × $35 = $280. Add $120 rental + $90 added labor and subtract $50 recovery: $440 net impact.
lost_sessions = affected_demand − originally_served − alternatively_served − recaptured lost_contribution = lost_sessions × (price − avoided_variable_cost_per_session) net_incremental_impact = lost_contribution + incremental_outage_expenses − recoveries
Counts must reconcile to affected demand and represent disjoint groups: a session served on other equipment is not also recaptured later. If a rescheduled visit displaced another paying visit, examine that displacement separately; neither visit is counted twice.
Costs already counted in cost of ownership are not added again here.
What's kept apart
Refunds already reflected in net revenue are displayed but never added again. Unchanged membership receipts don't become lost revenue because members missed visits. Fixed rent and unchanged payroll stay outside incremental outage expense.
What's not in here
No churn assumption, no customer lifetime value, no probability that a customer left. A future churn scenario would be a separate, labeled calculation. The example is fictional.