diff --git a/src/main/java/Model/TransactionFactory.java b/src/main/java/Model/TransactionFactory.java
index a3b8c9a..691d41b 100644
--- a/src/main/java/Model/TransactionFactory.java
+++ b/src/main/java/Model/TransactionFactory.java
@@ -1,22 +1,22 @@
 package Model;
 
 /**
- * Factory for creating transaction objects
+ * Factory for creating transaction objects.
  */
 public class TransactionFactory {
 
-    /**
-     * Create purchase transaction
-     */
-    public static Transaction createPurchase(Share share, int week) {
-        return new Purchase(share, week);
-    }
+  /**
+   * Create purchase transaction.
+   */
+  public static Transaction createPurchase(Share share, int week) {
+    return new Purchase(share, week);
+  }
 
-    /**
-     * Create sale transaction
-     */
-    public static Transaction createSale(Share share, int week) {
-        return new Sale(share, week);
-    }
+  /**
+   * Create sale transaction.
+   */
+  public static Transaction createSale(Share share, int week) {
+    return new Sale(share, week);
+  }
     
 }