Your question is Diagnose Regional Gross Margin Drop. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
You support a grocery delivery business and see gross margin in one region fall from 24.1% last week to 19.3% this week, while companywide gross margin stayed near 23.8%. Order volume in that region was roughly flat, but the drop was large enough to put the monthly plan at risk. There were no obvious changes in the headline dashboard besides the margin decline, and leadership wants an initial read quickly.
What would you do first if gross margin suddenly dropped in one region?