diff --git a/index.html b/index.html
index c64963f..a14990c 100644
--- a/index.html
+++ b/index.html
@@ -212,7 +212,7 @@
           <thead>
             <tr>
               <th valign="bottom" data-i18n="patterns.pattern"></th>
-              <th valign="bottom" data-i18n="output.chance"></th>
+              <th colspan="2" valign="bottom" data-i18n="output.chance"></th>
               <th valign="bottom" data-i18n="weekdays.sunday"></th>
               <th colspan="2">
                 <div data-i18n="weekdays.monday"></div>
diff --git a/js/predictions.js b/js/predictions.js
index 0a280cc..a6d00d2 100644
--- a/js/predictions.js
+++ b/js/predictions.js
@@ -846,14 +846,20 @@ function analyze_possibilities(sell_prices, first_buy, previous_pattern) {
     poss.weekMax = Math.max(...weekMaxes);
   }
 
+  category_totals = {}
+  for (let i of [0, 1, 2, 3]) {
+    category_totals[i] = generated_possibilities
+      .filter(value => value.pattern_number == i)
+      .map(value => value.probability)
+      .reduce((previous, current) => previous + current, 0);
+  }
+
+  for (let pos of generated_possibilities) {
+    pos.category_total_probability = category_totals[pos.pattern_number];
+  }
+
   generated_possibilities.sort((a, b) => {
-    if (a.weekMax < b.weekMax) {
-      return 1;
-    } else if (a.weekMax > b.weekMax) {
-      return -1;
-    } else {
-      return 0;
-    }
+    return b.category_total_probability - a.category_total_probability || b.probability - a.probability;
   });
 
   global_min_max = [];
diff --git a/js/scripts.js b/js/scripts.js
index e13b254..a60bc60 100644
--- a/js/scripts.js
+++ b/js/scripts.js
@@ -256,9 +256,18 @@ const calculateOutput = function (data, first_buy, previous_pattern) {
   }
   let output_possibilities = "";
   let analyzed_possibilities = analyze_possibilities(data, first_buy, previous_pattern);
+  previous_pattern_number = ""
   for (let poss of analyzed_possibilities) {
     var out_line = "<tr><td class='table-pattern'>" + poss.pattern_description + "</td>"
-    out_line += `<td>${Number.isFinite(poss.probability) ? ((poss.probability * 100).toPrecision(3) + '%') : '—'}</td>`;
+    if (previous_pattern_number != poss.pattern_number) {
+      previous_pattern_number = poss.pattern_number
+      pattern_count = analyzed_possibilities
+        .filter(val => val.pattern_number == poss.pattern_number)
+        .length
+      percentage_display = percent => Number.isFinite(percent) ? ((percent * 100).toPrecision(3) + '%') : '—'
+      out_line += `<td rowspan=${pattern_count}>${percentage_display(poss.category_total_probability)}</td>`;
+    }
+    out_line += `<td>${percentage_display(poss.probability)}</td>`;
     for (let day of poss.prices.slice(1)) {
       if (day.min !== day.max) {
         out_line += `<td>${day.min} ${i18next.t("output.to")} ${day.max}</td>`;