diff --git a/Abrechnung/module.php b/Abrechnung/module.php
index 4bf92dd..591341e 100644
--- a/Abrechnung/module.php
+++ b/Abrechnung/module.php
@@ -241,42 +241,38 @@ private function GetValueAt(int $varId, int $timestamp, bool $nearestAfter = fal
 
 private function AddMeterToPDFRow($meter, $tariffs, $from, $to, $type)
 {
-    $startVal = $this->GetValueAt($meter['var_consumption'], $from, false); // letzter Wert ≤ Start
-    $endVal   = $this->GetValueAt($meter['var_consumption'], $to,   true);  // erster Wert ≥ Ende
+    $startValTotal = $this->GetValueAt($meter['var_consumption'], $from, false); // letzter Wert ≤ Start
+    $endValTotal   = $this->GetValueAt($meter['var_consumption'], $to,   true);  // erster Wert ≥ Ende
 
+    IPS_LogMessage('Abrechnung', "Meter {$meter['name']} ($type) von " . date('d.m.Y H:i', $from) . " bis " . date('d.m.Y H:i', $to) . ": start=$startValTotal, end=$endValTotal");
 
-    IPS_LogMessage('Abrechnung', "Meter {$meter['name']} ($type) von " . date('d.m.Y H:i', $from) . " bis " . date('d.m.Y H:i', $to) . ": start=$startVal, end=$endVal");
+    if ($startValTotal === null || $endValTotal === null) return ['row' => '', 'value' => 0];
 
-    if ($startVal === null || $endVal === null) return ['row' => '', 'value' => 0];
-
-    $totalDiff = max(0, $endVal - $startVal);
+    $totalDiff = max(0, $endValTotal - $startValTotal);
     if ($totalDiff <= 0) return ['row' => '', 'value' => 0];
 
     $rows = '';
     $totalCost = 0.0;
 
-    // Alle Tarife dieses Typs prüfen
     foreach ($tariffs as $t) {
         if (strtolower($t['unit_type']) != strtolower($type)) continue;
 
         $tariffStart = strtotime($t['start']);
         $tariffEnd   = strtotime($t['end']);
 
-        // Überschneidung mit Abrechnungszeitraum prüfen
-        if ($tariffEnd < $from || $tariffStart > $to) continue;
-
-        // Überschneidung bestimmen
+        // Überschneidung mit Abrechnungszeitraum
         $sectionStart = max($from, $tariffStart);
         $sectionEnd   = min($to, $tariffEnd);
-        $sectionDuration = $sectionEnd - $sectionStart;
-        $totalDuration   = $to - $from;
+        if ($sectionEnd <= $sectionStart) continue;
 
-        if ($sectionDuration <= 0) continue;
-
-        // Verbrauch anteilig nach Dauer
-        $sectionFraction = $sectionDuration / $totalDuration;
+        // Verbrauch anteilig
+        $sectionFraction = ($sectionEnd - $sectionStart) / ($to - $from);
         $sectionDiff = $totalDiff * $sectionFraction;
 
+        // Start-/Endwert für diese Tarifzeit berechnen
+        $sectionStartVal = $startValTotal + $totalDiff * (($sectionStart - $from) / ($to - $from));
+        $sectionEndVal   = $sectionStartVal + $sectionDiff;
+
         $tariffRp = floatval($t['price']);
         $costCHF  = ($tariffRp / 100) * $sectionDiff;
 
@@ -286,6 +282,8 @@ private function AddMeterToPDFRow($meter, $tariffs, $from, $to, $type)
             <td>$type</td>
             <td>" . date('d.m.Y H:i', $sectionStart) . "</td>
             <td>" . date('d.m.Y H:i', $sectionEnd) . "</td>
+            <td>" . number_format($sectionStartVal, 2) . "</td>
+            <td>" . number_format($sectionEndVal, 2) . "</td>
             <td>" . number_format($sectionDiff, 2) . "</td>
             <td>" . number_format($tariffRp, 2) . "</td>
             <td>" . number_format($costCHF, 2) . "</td>
@@ -302,6 +300,8 @@ private function AddMeterToPDFRow($meter, $tariffs, $from, $to, $type)
             <td>$type</td>
             <td>" . date('d.m.Y H:i', $from) . "</td>
             <td>" . date('d.m.Y H:i', $to) . "</td>
+            <td>" . number_format($startValTotal, 2) . "</td>
+            <td>" . number_format($endValTotal, 2) . "</td>
             <td>" . number_format($totalDiff, 2) . "</td>
             <td>0</td>
             <td>0.00</td>
@@ -312,4 +312,5 @@ private function AddMeterToPDFRow($meter, $tariffs, $from, $to, $type)
 }
 
 
+
 }
\ No newline at end of file