diff --git a/src/main/java/temppackage/PurchaseCalculator.java b/src/main/java/temppackage/PurchaseCalculator.java
deleted file mode 100644
index 23df7c5..0000000
--- a/src/main/java/temppackage/PurchaseCalculator.java
+++ /dev/null
@@ -1,36 +0,0 @@
-package temppackage;
-
-import java.math.BigDecimal;
-
-public class PurchaseCalculator implements TransactionCalculator {
-    private BigDecimal purchasePrice;
-    private BigDecimal quantity;
-
-    public PurchaseCalculator(Share share) {
-        this.purchasePrice = share.getPurchasePrice();
-        this.quantity = share.getQuantity();
-    }
-
-
-
-    @Override
-    public BigDecimal calculateGross() {
-        return this.purchasePrice.multiply(this.quantity);
-    }
-
-    @Override
-    public BigDecimal calculateComission() {
-        BigDecimal gross = this.calculateGross();
-        return gross.multiply(BigDecimal.valueOf(0.05));
-    }
-
-    @Override
-    public BigDecimal calculateTax() {
-        return new BigDecimal("0");
-    }
-
-    @Override
-    public BigDecimal calculateTotal() {
-        return this.calculateGross().add(this.calculateTax().add(this.calculateComission()));
-    }
-}
diff --git a/src/main/java/temppackage/SaleCalculator.java b/src/main/java/temppackage/SaleCalculator.java
deleted file mode 100644
index 1860ced..0000000
--- a/src/main/java/temppackage/SaleCalculator.java
+++ /dev/null
@@ -1,43 +0,0 @@
-package temppackage;
-
-import java.math.BigDecimal;
-
-public class SaleCalculator implements TransactionCalculator {
-    private BigDecimal purchasePrice;
-    private BigDecimal salesPrice;
-    private BigDecimal quantity;
-
-    public SaleCalculator(Share share) {
-        this.purchasePrice = share.getPurchasePrice();
-        this.salesPrice = share.getStock().getPrice();
-        this.quantity = share.getQuantity();
-    }
-
-    @Override
-    public BigDecimal calculateGross() {
-        return this.salesPrice.multiply(this.quantity);
-    }
-
-    @Override
-    public BigDecimal calculateComission() {
-        BigDecimal gross = this.calculateGross();
-        return gross.multiply(BigDecimal.valueOf(0.05));
-    }
-
-    @Override
-    public BigDecimal calculateTax() {
-        BigDecimal gross = this.calculateGross();
-        BigDecimal comission = this.calculateComission();
-        BigDecimal buyPrice = this.purchasePrice.multiply(this.quantity);
-        BigDecimal earnings = gross.subtract(comission).subtract(comission).subtract(buyPrice);
-        return earnings.multiply(BigDecimal.valueOf(0.3));
-    }
-
-    @Override
-    public BigDecimal calculateTotal() {
-        BigDecimal gross = this.calculateGross();
-        BigDecimal comission = this.calculateComission();
-        BigDecimal tax = this.calculateTax();
-        return gross.subtract(comission).subtract(tax);
-    }
-}
diff --git a/src/main/java/temppackage/TransactionCalculator.java b/src/main/java/temppackage/TransactionCalculator.java
deleted file mode 100644
index 2158e5a..0000000
--- a/src/main/java/temppackage/TransactionCalculator.java
+++ /dev/null
@@ -1,10 +0,0 @@
-package temppackage;
-
-import java.math.BigDecimal;
-
-public interface TransactionCalculator {
-    public BigDecimal calculateGross();
-    public BigDecimal calculateComission();
-    public BigDecimal calculateTax();
-    public BigDecimal calculateTotal();
-}