YoY Cost Dashboard

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By departure month

YoY cost increase

Bar view

YoY cost increase — every year

Multi-year-pair line view

YoY cost spread

Distribution of per-departure YoY % within each month

Average cost

Simple mean across deps (every dep = 1 observation)

By trip fill

YoY cost increase

Months combined

YoY cost spread

Distribution of per-departure YoY % within each pax bucket

Cost curve

Simple mean per departure

Analysis

How this is calculated

  • Source: two published Google Sheets fetched in parallel as CSV. The Costs extract supplies per-departure cost data already converted to USD incl. mandatory and buffer. The Cost Targets sheet supplies the dashed KPI line.
  • Departures included: Secured status = SECURED or COST_SECURED (cost is locked in both); ALLOCATION_SECURED / NOT_SECURED / PENDING excluded; Insider? excluded; departures missing a 10-pax USD cost (column AS) excluded — incomplete cost data; AQ tours (AQ1, AQ2, AQA, AQB) excluded from EVERY tab — Antarctica costs are not supplied through this extract.
  • Like-for-like comparison: for every year-pair, only tours that have at least one secured departure in both years are included. Within a bucket, only tour-buckets present in both years contribute.
  • Unweighted simple mean (v4): every secured departure with a valid cost counts as 1 observation. Mean cost per year is just sum of dep costs ÷ count of deps within the LfL set. YoY % = current-year mean ÷ prior-year mean − 1. No customer-volume weighting — that overlay is done separately by the commercial team's booking-volume workflow.
  • Cost per departure: with a specific trip fill, the cost is the matching USD-cost column (incl. mandatory & buffer). With "All trip fills (avg)", it's the simple mean of all 11 fill levels.
  • Bucket: if the Holiday column is set the row goes to that bucket; otherwise to its calendar month. Holidays = Exclude drops Easter, Christmas and New Year rows from all charts.
  • YoY %: mean cost in the selected year ÷ mean cost in the prior year − 1. Charts auto-scale to the values shown.