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Hotel Group Block Washout Calculator
Group blocks wash out below pickup target — calculate attrition revenue recovery.
Net attrition owed by group
$1,375
Rooms washed out
10
Replacement revenue captured
$825
How the math works
Rooms washed = allowed pickup − actual. Attrition = rooms × rate × charge. Net = attrition − replacement.
400 × 80% = 320 allowed − 310 picked = 10 washed × $220 = $2,200 − $825 replacement = $1,375 net.
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How this calculator works
What this page estimates
This Hotel Group Block Washout Calculator is built to give a quick, browser-based estimate for hotel group block washout. Group blocks wash out below pickup target — calculate attrition revenue recovery. The inputs stay on the page during normal use, and the result should be treated as an estimate for planning, comparison, or education rather than professional advice.
Calculation approach
The calculator applies the standard relationship implied by the inputs, then formats the answer so it can be checked and reused. For finance tools, the most important step is using consistent units, rates, time periods, and assumptions before comparing the result with another calculator or outside quote.
Example workflow
For example, start with a realistic value you already know, change one input at a time, and watch how the answer moves. That makes it easier to tell whether the result is being driven by the main amount, the rate, the time period, or a unit conversion.
Practical checks
- Use current, real-world numbers when the result affects money, health, tax, or legal decisions.
- Run a low, base, and high case when the inputs are estimates.
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How to interpret the hotel group block washout result
Best use
Use the result as a planning number for comparing payments, rates, returns, tax reserves, or cash-flow choices before you request a quote or make a commitment.
Cross-check
Compare the answer with the contract, lender estimate, tax form, brokerage statement, payroll record, or invoice that will control the real-world outcome.
Watch for
Do not rely on a single optimistic rate, return, or fee assumption. Money pages work best when you run low, base, and high cases and keep professional advice separate from the estimate.
This page belongs to the Finance calculator library, so the answer should be read in the context of the decision you are modeling rather than as a universal rule.
Before relying on this hotel group block washout estimate
Most calculator mistakes come from the inputs, not the arithmetic. Use this short audit before you reuse the answer in a spreadsheet, quote, application, or important conversation.
Confirm source numbers
Match balances, rates, fees, taxes, income, and payment dates against the lender quote, payroll record, tax form, statement, invoice, or contract.
Separate cash flow from total cost
A lower monthly payment can still cost more over time if fees, interest, taxes, or a longer term are hidden in the structure.
Run conservative cases
Test at least one higher-cost or lower-return case before using the output for a purchase, refinance, investment, loan, or tax decision.
Rerun this page when the rate, price, term, fee, tax rule, income, expense, or expected holding period changes.
How to Use
- Enter contracted room nights.
- Enter actual picked-up room nights.
- Enter group rate per night.
- Enter attrition clause % (allowed drop-off).
- Enter attrition charge %.
- Enter replacement revenue per room.
- Read attrition recovery.
Frequently Asked Questions
What is washout?
Group book blocks X rooms at negotiated rate for specific dates. 'Pickup' = rooms actually booked by group members. Pickup below block = washout. Hotel loses revenue from unfilled rooms (opportunity cost — could have sold to other guests at public rate). Attrition clause: group pays penalty for pickup below threshold (typically 80-85% of block). Common issue in meetings/events industry.
Typical attrition terms?
Contract specifies: block, pickup requirement (75-85% of block), attrition charge on shortfall (70-100% of contracted rate per unfilled room). Cumulative basis (total block vs pickup) or daily basis (per-night pickup vs per-night block). Daily is hotel-friendly. Industry standard: cumulative at 80% threshold. Group blocks for shoulder/off-season: more generous; peak season: stricter.
Resell mitigation?
Hotel has duty to mitigate — attempt to resell unfilled rooms at public rate. If resold: hotel collects double (group attrition + public rate). If unsold: group pays attrition, hotel loses no revenue. Typical resell: 40-70% of washed-out rooms sell to transient market. Hotel's attrition entitlement: original contract loss minus replacement revenue. Accurate tracking important for fair billing.
Group pickup prediction?
Historical pickup by group type: association 75-85%, corporate 85-95%, wedding 80-90%, conference 70-85%. Time to event: closer = more accurate. 60 days out: 60-75% of final. 30 days: 85-95%. 7 days: 95-100%. Revenue management teams monitor pickup weekly and manage attrition — call groups to remind, add transient availability when pickup weak. Sophisticated hotels recover 70-85% of gross attrition opportunity.
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