What do the dashboard's business-health cards mean?

Sales Trend and Cash Flow compare this year's sales/money-in-and-out against the same months last year, so you can see whether you're actually growing rather than just guessing from memory. Receivables at Risk lists your oldest unpaid customer balances — the same list the payment-reminders feature checks daily. Slow-Moving Stock flags items you're still holding that haven't sold in the last 90 days, which is worth reviewing periodically since it's tied-up capital sitting on a shelf.