diff --git a/src/main/java/edu/ntnu/idi/idatt/service/transaction/SaleCalculator.java b/src/main/java/edu/ntnu/idi/idatt/service/transaction/SaleCalculator.java
index 8bbe827..102f1a5 100644
--- a/src/main/java/edu/ntnu/idi/idatt/service/transaction/SaleCalculator.java
+++ b/src/main/java/edu/ntnu/idi/idatt/service/transaction/SaleCalculator.java
@@ -76,4 +76,9 @@ public BigDecimal calculateTotal() {
     return calculateGross().subtract(calculateCommision()).subtract(calculateTax());
   }
 
+  // TODO: Javadocs, junit
+  public BigDecimal calculateProfit() {
+    return calculateTotal().divide(purchasePrice.multiply(quantity));
+  }
+
 }