Create a six-slide presentation in English for the manager of the fictional Northbank Museum, deciding whether to extend a four-evening late-opening pilot for another month. Use only the fictional source data below. Do not browse, add sources, invent visitor quotes, infer causes for changes or forecast future attendance. Label the figures as fictional test data.

Audience: a busy museum manager. Exactly six slides including the title. Use a clean 16:9 editorial design with large readable text, charcoal type, a warm ivory background and one burnt-orange accent. Use a labelled attendance bar chart with a zero baseline and an 80-person capacity reference; keep its geometry proportional to the values. No decorative people or invented photographs are needed.

Slide order: (1) pilot and decision to be made; (2) the four evenings, attendance and capacity utilization; (3) the attendance chart; (4) ticket revenue, listed costs and contribution calculation; (5) what the evidence can and cannot establish; (6) a conditional recommendation and the two missing checks before extending.

Fictional source data:
The pilot ran for four separate Thursday evenings in September 2026. Each evening had capacity for 80 visitors. Attendance was 40, 55, 50 and 75 people in Week 1 through Week 4 respectively. All attendees paid $8 each. Staffing cost $120 per evening. Materials cost $2 per attendee. No other costs are included in the packet. Marketing expenditure and visitor satisfaction have not been measured. There is no comparison group or forecast.

Calculate each evening's capacity utilization as attendance divided by 80. Calculate total attendance, total available capacity, overall utilization, ticket revenue, total staffing cost, total materials cost and the remaining contribution after those two listed costs. Do not call that contribution net profit, because the packet does not include all costs. Show the calculation clearly and keep all supplied figures unchanged. A rise between two weeks does not establish why attendance changed or prove that it will continue.

End with a conditional recommendation that asks the manager to verify marketing/other omitted costs and collect visitor satisfaction before approving an extension. Provide the actual available downloadable presentation format. If native editable PowerPoint export is available, include it; if not, state the format you can provide. Do not publish a public share link.


Thinking completed
Draft Plan: Northbank Museum Late-Opening Pilot Decision
Big Idea: Northbank Museum's Thursday late-opening pilot shows rising attendance and positive unit economics, but missing marketing cost and satisfaction data prevent a confident extension decision without two verification steps.
Audience: Museum operations manager deciding on pilot extension
Density: minimal
Visual Style: Clean editorial layout; charcoal type on warm ivory; single burnt-orange accent; generous whitespace
6 slides
Cover: Northbank Museum Late-Opening Pilot（subtitle：Should We Extend Thursday Evenings?）
Four Thursday Evenings Test Whether Late Openings Can Draw Visitors
Attendance Rose from 40 to 75 Across Four Evenings, Reaching 94% Capacity
Bar Chart Shows Week-by-Week Attendance Growth Against 80-Person Capacity
Tickets Generated $1,760 Against $920 in Listed Costs, Leaving $840 Contribution
Rising Attendance Does Not Prove Causation, Sustainability, or Full Cost Coverage
Alternative audiences:
Deep version: Museum board of directors evaluating capital allocation for extended hours
Expanded version: City cultural affairs office assessing public institution programming ROI
Cross-domain version: Retail store manager deciding whether to extend weekend trading hours
Alternative styles:
Conservative: corporate — traditional blue-grey business report with standard charts
Bold: brutalist — high-contrast black and white with oversized raw typography
Contrast: scientific — data-dense laboratory report aesthetic with grid overlays
The draft plan has been generated. Please review it — reply with any adjustments, or say "Confirm" / "Start" to generate the full Slidedeck.
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