diff --git a/js/index.js b/js/index.js
index 75405d6..0e0c565 100644
--- a/js/index.js
+++ b/js/index.js
@@ -2,22 +2,34 @@
 
 function updateSubtotal(product) {
   console.log('Calculating subtotal, yey!');
+  const priceElement = product.querySelector('.price span');
+  const quantityElement = product.querySelector('.quantity input');
 
-  //... your code goes here
+  const price = parseFloat(priceElement.innerText);
+  const quantity = parseInt(quantityElement.value);
+
+  const subtotal = price * quantity;
+
+  const subtotalElement = product.querySelector('.subtotal span');
+  subtotalElement.innerText = subtotal.toFixed(2);
+
+  return subtotal;
 }
 
 function calculateAll() {
-  // code in the following two lines is added just for testing purposes.
-  // it runs when only iteration 1 is completed. at later point, it can be removed.
+
   const singleProduct = document.querySelector('.product');
   updateSubtotal(singleProduct);
-  // end of test
+  const products = document.querySelectorAll('.product'); // Select all products
+  let total = 0;
 
-  // ITERATION 2
-  //... your code goes here
+  products.forEach(product => {
+    total += updateSubtotal(product); 
+  });
 
-  // ITERATION 3
-  //... your code goes here
+  // ITERATION 3: Update the total value in the DOM
+  const totalElement = document.querySelector('#total-value span'); 
+  totalElement.innerText = total.toFixed(2); 
 }
 
 // ITERATION 4
@@ -25,18 +37,58 @@ function calculateAll() {
 function removeProduct(event) {
   const target = event.currentTarget;
   console.log('The target in remove is:', target);
-  //... your code goes here
+
+  const productRow = target.closest('.product');
+  productRow.remove();
+
+  calculateAll();
+}
+
+function addRemoveListeners() {
+  const removeBtns = document.querySelectorAll('.btn-remove');
+  removeBtns.forEach(button => {
+    button.addEventListener('click', removeProduct);
+  });
 }
 
 // ITERATION 5
 
 function createProduct() {
-  //... your code goes here
+  const nameInput = document.querySelector('.create-product input[type="text"]');
+  const priceInput = document.querySelector('.create-product input[type="number"]');
+  const name = nameInput.value;
+  const price = parseFloat(priceInput.value).toFixed(2);
+
+  if (!name || price <= 0) {
+    alert('Please enter valid product details');
+    return;
+  }
+
+  const tableBody = document.querySelector('#cart tbody');
+  const newRow = document.createElement('tr');
+  newRow.classList.add('product');
+  newRow.innerHTML = `
+    <td class="name"><span>${name}</span></td>
+    <td class="price">$<span>${price}</span></td>
+    <td class="quantity"><input type="number" value="0" min="0" placeholder="Quantity" /></td>
+    <td class="subtotal">$<span>0</span></td>
+    <td class="action"><button class="btn btn-remove">Remove</button></td>
+  `;
+
+  tableBody.appendChild(newRow);
+
+  addRemoveListeners();
+
+  nameInput.value = '';
+  priceInput.value = '';
 }
 
 window.addEventListener('load', () => {
   const calculatePricesBtn = document.getElementById('calculate');
   calculatePricesBtn.addEventListener('click', calculateAll);
+  
+  addRemoveListeners();
 
-  //... your code goes here
+  const createBtn = document.getElementById('create');
+  createBtn.addEventListener('click', createProduct);
 });
diff --git a/package.json b/package.json
index b1a8c31..37bd3d9 100644
--- a/package.json
+++ b/package.json
@@ -37,5 +37,8 @@
   "prettier": {
     "singleQuote": true,
     "trailingComma": "none"
+  },
+  "dependencies": {
+    "lab-javascript-root-cart": "file:"
   }
 }