From b2fa1d47a8afcb64cdce95c5d25cac3ce3ed174f Mon Sep 17 00:00:00 2001
From: AJ <ajisaacs27@gmail.com>
Date: Sun, 12 Oct 2025 10:11:17 -0400
Subject: [PATCH] Add average cost per transaction to top expense categories
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Display the average spend per transaction for each category on the
dashboard's top expense categories table. This helps users understand
spending patterns beyond just total amounts.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>
---
 MoneyMap/Pages/Index.cshtml    | 2 ++
 MoneyMap/Pages/Index.cshtml.cs | 4 +++-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/MoneyMap/Pages/Index.cshtml b/MoneyMap/Pages/Index.cshtml
index dd38a2c..e8c9a87 100644
--- a/MoneyMap/Pages/Index.cshtml
+++ b/MoneyMap/Pages/Index.cshtml
@@ -71,6 +71,7 @@
                     <tr>
                         <th>Category</th>
                         <th class="text-end">Total Spend</th>
+                        <th class="text-end">Avg Per Txn</th>
                         <th class="text-end">% of Total</th>
                         <th class="text-end">Txns</th>
                     </tr>
@@ -85,6 +86,7 @@
                                 </a>
                             </td>
                             <td class="text-end">@c.TotalSpend.ToString("C")</td>
+                            <td class="text-end text-muted">@c.AveragePerTransaction.ToString("C")</td>
                             <td class="text-end">
                                 <span class="badge bg-secondary">@c.PercentageOfTotal.ToString("F1")%</span>
                             </td>
diff --git a/MoneyMap/Pages/Index.cshtml.cs b/MoneyMap/Pages/Index.cshtml.cs
index b124efb..cb162fa 100644
--- a/MoneyMap/Pages/Index.cshtml.cs
+++ b/MoneyMap/Pages/Index.cshtml.cs
@@ -45,6 +45,7 @@ namespace MoneyMap.Pages
             public decimal TotalSpend { get; set; }
             public int Count { get; set; }
             public decimal PercentageOfTotal { get; set; }
+            public decimal AveragePerTransaction { get; set; }
         }
 
         public class RecentTxnRow
@@ -194,7 +195,8 @@ namespace MoneyMap.Pages
                     Category = g.Key,
                     TotalSpend = g.Sum(x => -x.Amount),
                     Count = g.Count(),
-                    PercentageOfTotal = totalSpend > 0 ? (g.Sum(x => -x.Amount) / totalSpend) * 100 : 0
+                    PercentageOfTotal = totalSpend > 0 ? (g.Sum(x => -x.Amount) / totalSpend) * 100 : 0,
+                    AveragePerTransaction = g.Count() > 0 ? g.Sum(x => -x.Amount) / g.Count() : 0
                 })
                 .OrderByDescending(x => x.TotalSpend)
                 .Take(count)