I design every lesson, workbook, and number you see verified live. AI tools help with production (writing polish, visuals, narration delivery) — they execute the plan; they don’t invent the curriculum or replace the live Excel testing.
Every number in your store spreadsheet is either a measurement or a lie waiting to happen. You counted the stock on Friday and typed “12.” You set the reorder alert to “20 units.” You track profit with an “average fee percentage.” Each of those was correct exactly once — the moment you typed it — and has been drifting away from the truth ever since. Components sold. Demand doubled. The fee mix shifted. The typed number never noticed.
This course takes the eight most expensive of those quiet lies — the ones that stock out your best seller, oversell a bundle you can’t build, or hide the “bestseller” that loses money on every unit — and replaces each one with a formula that recomputes itself. Every example is built in a real workbook, on screen. Five of the eight techniques come with starter and solution workbooks so you can type along and keep the result — four workbook pairs, with the barcode workbook carrying both data-integrity lessons; the other three are guided walkthroughs of a finished sheet, where we read the formulas together rather than build them from scratch.
