View source code:

<div id="example">
    <table>
        <thead>
            <tr>
                <th>Name</th>
                <th>Price</th>
                <th>Units</th>
                <th>Delete</th>
            </tr>
        </thead>
        <tbody data-template="row-template" data-bind="source: products"></tbody>
        <tfoot data-template="footer-template" data-bind="source: this"></tfoot>
    </table>

    <div>
        <span>Add a product</span>
        <ul>
            <li>
                <label>Name:<input type="text" placeholder="Enter name" data-bind="value: productName" /></label>
            </li>
            <li>
                <label>Price:<input type="number" placeholder="Enter number" data-bind="value: productPrice" /></label>
            </li>
            <li>
                <label>Units in stock:<input type="number" placeholder="Enter number" data-bind="value: productUnitsInStock" /></label>
            </li>
            <li>
                <button data-bind="click: addProduct">Add a new product</button>
            </li>
        </ul>
    </div>
</div>
<script id="row-template" type="text/x-kendo-template">
    <tr>
        <td data-bind="text: name">
        </td>
        <td data-bind="text: price" data-format="C">
            #: kendo.toString(get("price"), "C") #
        </td>
        <td data-bind="text: unitsInStock"></td>
        <td><button data-bind="click: deleteProduct">Delete</button></td>
    </tr>
</script>
<script id="footer-template" type="text/x-kendo-template">
    <tr>
        <td>
            Products count: #: total() #
        </td>
        <td>
            Total price: #: totalPrice() #
        </td>
        <td colspan="2">
            Units in stock: #: totalUnitsInStock() #
        </td>
    </tr>
</script>
        

View model source code:

var viewModel = kendo.observable({
    productName: "Product name",
    productPrice: 10,
    productUnitsInStock: 10,
    addProduct: function() {
        this.get("products").push({
            name: this.get("productName"),
            price: parseFloat(this.get("productPrice")),
            unitsInStock: parseFloat(this.get("productUnitsInStock"))
        });
    },
    deleteProduct: function(e) {
        // the current data item (product) is passed as the "data" field of the event argument
        var product = e.data;

        var products = this.get("products");

        var index = products.indexOf(product);

        // remove the product by using the splice method
        products.splice(index, 1);
    },
    total: function() {
        return this.get("products").length;
    },
    totalPrice: function() {
        var sum = 0;

        $.each(this.get("products"), function(index, product) {
            sum += product.price;
        });

        return sum;
    },
    totalUnitsInStock: function() {
        var sum = 0;

        $.each(this.get("products"), function(index, product) {
            sum += product.unitsInStock;
        });

        return sum;
    },
    products: [
        { name: "Hampton Sofa", price: 989.99, unitsInStock: 39 },
        { name: "Perry Sofa", price: 559.99, unitsInStock: 17 },
        { name: "Donovan Sofa", price: 719.99, unitsInStock: 29 },
        { name: "Markus Sofa", price: 839.99, unitsInStock: 3 }
    ]
});

kendo.bind($("#example"), viewModel);