Improve confidence percentage display

app.py

@@ -258,9 +258,16 @@ def predict_sign(path):
     return label, confidence
 
 
+def format_confidence(confidence):
+    value = max(0.0, min(float(confidence or 0), 1.0)) * 100
+    if 99.995 <= value < 100:
+        value = 99.99
+    return f"{value:.2f}%"
+
+
 @app.context_processor
 def inject_user():
-    return {"user": current_user()}
+    return {"format_confidence": format_confidence, "user": current_user()}
 
 
 @app.route("/")

templates/dashboard.html

@@ -80,7 +80,7 @@
         <tr>
           <td><img class="thumb" src="{{ url_for('static', filename=row.image_path) }}" alt="Traffic sign"></td>
           <td>{{ row.predicted_class }}</td>
-          <td>{{ "%.1f"|format((row.confidence or 0) * 100) }}%</td>
+          <td>{{ format_confidence(row.confidence) }}</td>
           <td>
             {% if row.is_correct == 1 %}
               <span class="status true">True</span>

templates/predict.html

@@ -47,7 +47,7 @@
       <div class="prediction-result">
         <span>Predicted class</span>
         <strong>{{ prediction.predicted_class }}</strong>
-        <small>Confidence: {{ "%.1f"|format(prediction.confidence * 100) }}%</small>
+        <small>Confidence: {{ format_confidence(prediction.confidence) }}</small>
       </div>
       <form class="feedback-row" method="post" action="{{ url_for('feedback', prediction_id=prediction.id) }}">
         <input type="hidden" name="next" value="{{ url_for('predict') }}">
@@ -72,7 +72,7 @@
       <article class="history-card">
         <img src="{{ url_for('static', filename=row.image_path) }}" alt="Traffic sign prediction">
         <strong>{{ row.predicted_class }}</strong>
-        <small>{{ "%.1f"|format((row.confidence or 0) * 100) }}% confidence</small>
+        <small>{{ format_confidence(row.confidence) }} confidence</small>
       </article>
     {% else %}
       <p class="empty">No predictions yet.</p>