diff --git a/comet/account/migrations/0005_auto_20190205_1841.py b/comet/account/migrations/0005_auto_20190205_1841.py
new file mode 100644
index 0000000..0dfc96f
--- /dev/null
+++ b/comet/account/migrations/0005_auto_20190205_1841.py
@@ -0,0 +1,23 @@
+# Generated by Django 2.1.4 on 2019-02-05 18:41
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('account', '0004_auto_20181214_1844'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='article',
+            name='price',
+            field=models.DecimalField(decimal_places=3, max_digits=4, verbose_name='Prix unitaire (au €/g)'),
+        ),
+        migrations.AlterField(
+            model_name='sale',
+            name='price',
+            field=models.DecimalField(decimal_places=3, max_digits=5, verbose_name='Prix (€)'),
+        ),
+    ]
diff --git a/comet/account/models.py b/comet/account/models.py
index c71a2ff..d042805 100644
--- a/comet/account/models.py
+++ b/comet/account/models.py
@@ -2,6 +2,7 @@ from django.db import models
 
 from django.utils import timezone
 
+
 class Account(models.Model):
     """Account for a member."""
     balance = models.DecimalField(
@@ -18,25 +19,27 @@ class Account(models.Model):
         """Adjust the ballance according to the sales,
         without saving the model."""
         self.balance = Sale.objects.filter(account=self)\
-                .aggregate(models.Sum('price'))['price__sum']
+            .aggregate(models.Sum('price'))['price__sum']
+
 
 class Sale(models.Model):
     """Represents a sale"""
     price = models.DecimalField(
         verbose_name="Prix (€)",
-        max_digits=4,
-        decimal_places=2
+        max_digits=5,
+        decimal_places=3
     )
     account = models.ForeignKey(Account, on_delete=models.SET_NULL, null=True)
     title = models.CharField(max_length=255, verbose_name="Intitulé")
     date = models.DateTimeField(verbose_name="Date", default=timezone.now)
 
+
 class Article(models.Model):
     """An article which can be sold."""
     price = models.DecimalField(
         verbose_name="Prix unitaire (au €/g)",
         max_digits=4,
-        decimal_places=2
+        decimal_places=3
     )
     name = models.CharField(
         max_length=255,