diff --git a/api.ts b/api.ts
index 9a3369b..d322236 100644
--- a/api.ts
+++ b/api.ts
@@ -32,38 +32,67 @@ await client.connect();
 const query = await Deno.readTextFile("sql/get.pg.sql");
 
 function apply_guidance(doc: any) {
+  let mostRelevantPrice = null;
+  let mostRelevantKey = null;
+  let highestRelevanceLevel = -1; // Assume -1 is less than any relevance level
+
+  // Function to update price and assign relevance indicator
+  function updatePriceAndAssignRelevance(items, channelFirstChar, v1ds, v0ds, histKey) {
+    for (let item of items) {
+      // Update the last_price with the most recent price
+      const years = Object.keys(item.season);
+      if (years.length > 0) {
+        const recentYear = Math.max(...years.map(Number));
+        const lastPrice = item.season[recentYear].price_usd;
+        item.last_price = lastPrice;
+      } else {
+        item.last_price = null; // or some default value as appropriate
+      }
+
+      // Initialize relevance as numeric value
+      let relevance = 0; // Assume 0 is 'not relevant'
+
+      // Check if the first character of the item's channel matches the first character of the document's channel
+      if (item.chan.charAt(0) === channelFirstChar) {
+        relevance = 1; // 'relevant'
+
+        // Further refine relevance based on v1ds and v0ds
+        if (item.v1ds === v1ds) {
+          relevance = 2; // 'most relevant' because v1ds matches
+        } else if (item.v0ds === v0ds) {
+          relevance = relevance === 2 ? 2 : 1; // Keep relevance as is if v1ds was matched, otherwise it's just 'relevant'
+        }
+      }
+
+      // Assign the calculated relevance to the item
+      item.relevance = relevance;
+
+      // Update the most relevant price if this item's relevance is higher
+      if (relevance > highestRelevanceLevel) {
+        highestRelevanceLevel = relevance;
+        mostRelevantPrice = item.last_price;
+        mostRelevantKey = histKey;
+      }
+    }
+  }
 
   // Iterate over each key in the "hist" object
   for (let key of Object.keys(doc.hist)) {
-    // Update each item in the current key with the most recent price
-    updateWithMostRecentPrice(doc.hist[key]);
-    console.log(doc.chan[0]);
-    assignRelevanceIndicator(doc.hist[key], doc.chan[0], doc.v1ds, doc.v0ds);
+    // Update price and relevance for each item in the current key
+    updatePriceAndAssignRelevance(doc.hist[key], doc.chan[0], doc.v1ds, doc.v0ds, key);
   }
+
+  // Assign the most relevant price and key to the top level of the document
+  if (mostRelevantPrice !== null) {
+    doc.mostRelevantPriceInfo = {
+      price: mostRelevantPrice,
+      histKey: mostRelevantKey
+    };
+  }
+
   return doc;
 }
 
-function assignRelevanceIndicator(items, channelFirstChar, v1ds, v0ds) {
-  for (let item of items) {
-    // Initialize relevance as numeric value
-    let relevance = 0; // Assume 0 is 'not relevant'
-
-    // Check if the first character of the item's channel matches the first character of the document's channel
-    if (item.chan === channelFirstChar) {
-      relevance = 1; // 'relevant'
-
-      // Further refine relevance based on v1ds and v0ds
-      if (v1ds === item.v1ds && relevance === 1) {
-        relevance = 2; // 'most relevant' because v1ds matches
-      } else if (v0ds === item.v0ds && relevance === 1) {
-        // Keep relevance as 1 because v0ds matches but is less relevant than v1ds
-      }
-    }
-
-    // Assign the calculated relevance to the item
-    item.relevance = relevance;
-  }
-}
 
 // Function to update each item with the most recent price
 function updateWithMostRecentPrice(items) {