diff --git a/modules/account_invoice/invoice_melya.fodt b/modules/account_invoice/invoice_melya.fodt
index 4874d7b..5d1e1a5 100644
--- a/modules/account_invoice/invoice_melya.fodt
+++ b/modules/account_invoice/invoice_melya.fodt
@@ -1662,10 +1662,10 @@
     </table:table-row>
     <table:table-row>
      <table:table-cell table:style-name="Tableau3.A1" office:value-type="string">
-      <text:p text:style-name="P12"><text:span text:style-name="Police_20_par_20_défaut"><text:span text:style-name="T8"><text:placeholder text:placeholder-type="text">&lt;pc[&apos;label&apos;]&gt;</text:placeholder></text:span></text:span></text:p>
+      <text:p text:style-name="P12"><text:span text:style-name="Police_20_par_20_défaut"><text:span text:style-name="T9"><text:placeholder text:placeholder-type="text">&lt;pc[&apos;label&apos;]&gt;</text:placeholder></text:span></text:span></text:p>
      </table:table-cell>
      <table:table-cell table:style-name="Tableau3.A1" office:value-type="string">
-      <text:p text:style-name="P13"><text:span text:style-name="Police_20_par_20_défaut"><text:span text:style-name="T8"><text:placeholder text:placeholder-type="text">&lt;format_currency(pc[&apos;amount&apos;], invoice.party.lang, invoice.currency) if pc[&apos;amount&apos;] is not None else &apos;&apos;&gt;</text:placeholder></text:span></text:span></text:p>
+      <text:p text:style-name="P13"><text:span text:style-name="Police_20_par_20_défaut"><text:span text:style-name="T9"><text:placeholder text:placeholder-type="text">&lt;format_number(pc[&apos;amount&apos;], invoice.party.lang) if pc[&apos;amount&apos;] is not None else &apos;&apos;&gt;</text:placeholder></text:span></text:span></text:p>
      </table:table-cell>
     </table:table-row>
     <table:table-row>
diff --git a/modules/purchase_trade/sale.py b/modules/purchase_trade/sale.py
index 3bf21e9..ba1fb5c 100755
--- a/modules/purchase_trade/sale.py
+++ b/modules/purchase_trade/sale.py
@@ -859,11 +859,27 @@ class Sale(metaclass=PoolMeta):
             currency_name = (
                 currency.rec_name.upper()
                 if currency and currency.rec_name else '')
-            for composition in getattr(line, 'price_composition', []) or []:
+            compositions = list(getattr(line, 'price_composition', []) or [])
+            missing = [
+                composition for composition in compositions
+                if getattr(composition, 'price', None) in (None, '')]
+            known_total = sum(
+                Decimal(str(getattr(composition, 'price', 0) or 0))
+                for composition in compositions
+                if getattr(composition, 'price', None) not in (None, ''))
+            residual = None
+            if len(missing) == 1:
+                residual = (
+                    self._get_report_price_composition_line_amount(line)
+                    - known_total)
+            for composition in compositions:
                 component = getattr(composition, 'component', '') or ''
                 price = getattr(composition, 'price', None)
                 if price in (None, ''):
-                    continue
+                    if composition is missing[0] and residual is not None:
+                        price = residual
+                    else:
+                        continue
                 label = ' '.join(
                     part for part in [
                         component,
@@ -877,6 +893,18 @@ class Sale(metaclass=PoolMeta):
                     })
         return lines
 
+    @staticmethod
+    def _get_report_price_composition_line_amount(line):
+        amount = getattr(line, 'amount', None)
+        if amount not in (None, ''):
+            return Decimal(str(amount or 0))
+        quantity = Decimal(str(getattr(line, 'quantity', 0) or 0))
+        unit_price = Decimal(str(getattr(line, 'unit_price', 0) or 0))
+        premium_getter = getattr(line, '_get_premium_price', None)
+        premium = premium_getter() if premium_getter else getattr(
+            line, 'premium', 0)
+        return quantity * (unit_price + Decimal(str(premium or 0)))
+
     @property
     def report_trade_blocks(self):
         lines = self._get_report_lines()
diff --git a/modules/purchase_trade/tests/test_module.py b/modules/purchase_trade/tests/test_module.py
index 2b4f649..893ec1f 100644
--- a/modules/purchase_trade/tests/test_module.py
+++ b/modules/purchase_trade/tests/test_module.py
@@ -2600,9 +2600,10 @@ class PurchaseTradeTestCase(ModuleTestCase):
         line.linked_unit = None
         line.unit = Mock(rec_name='MT')
         line.unit_price = Decimal('2525')
+        line.amount = Decimal('62493.75')
         line.price_composition = [
             Mock(component='FOB', price=Decimal('2500')),
-            Mock(component='FREIGHT', price=Decimal('25')),
+            Mock(component='FREIGHT', price=None),
         ]
 
         sale = Sale()
@@ -2619,7 +2620,10 @@ class PurchaseTradeTestCase(ModuleTestCase):
             sale.report_price_composition_rows,
             [
                 {'label': 'FOB value in EUR', 'amount': Decimal('2500')},
-                {'label': 'FREIGHT value in EUR', 'amount': Decimal('25')},
+                {
+                    'label': 'FREIGHT value in EUR',
+                    'amount': Decimal('59993.75'),
+                },
             ])
 
     def test_invoice_report_rate_lines_prefers_sale_price_composition(self):