Before You Trust the Total: Clean Data, Check Changes, and Explain Your Results - Softcover

Before You Trust the Total : Clean Data, Check Changes, and Explain Your Results

Taschenbuch. Zustand: Neu. Neuware - A tidy spreadsheet can still contain the wrong records.Before You Trust the Total is a practical guide for operations coordinators, small-business administrators, and spreadsheet users who need to explain how a result was produced.Follow an original order-export example through duplicate copies, legitimate returns, missing quantities, ambiguous dates, and joins that multiply amounts. Learn to preserve source records, state the rules for a change, keep unresolved data visible, and reconcile both the numbers and the records behind them.The book includes: - A complete spreadsheet formula lab with expected results and deliberate failure tests.- Eighteen diagnostic cases covering parsing, identifiers, missing matches, period boundaries, and misleading summaries.- A worked replacement-snapshot case showing corrections, new records, and release comparisons.- A method for evaluating AI-generated cleanup suggestions without accepting hidden assumptions.All business data is invented for teaching. The explanations and worked answers are included in the book; printing and external downloads are not required. Basic spreadsheet familiarity is enough to begin. Artikel-Nr. 9798176515633

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