Tricky~26min

The Margin Thief

Premium Electronics just posted 46.6% gross margin — best in the business unit. Input costs rose 12% this quarter. The category manager is up for a performance bonus. The CFO forwarded the report to you with one word: "how?"

Tables you'll query

productsdiscount_overridessales

What you'll learn

SubqueriesJOINsCASE Statements
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