default quantity "2" is coming how to change this to "1" ?

Herer The Link
virtu.co.in/works/food/baskin-robbins

### WordPress Environment ###

Home URL: http://virtu.co.in/works/food
Site URL: http://virtu.co.in/works/food
WC Version: 2.5.2
Log Directory Writable: ✔ /home4/virtucoi/public_html/works/food/wp-content/uploads/wc-logs/
WP Version: 4.4.2
WP Multisite: –
WP Memory Limit: 256 MB
WP Debug Mode: –
Language: en_US

### Server Environment ###

Server Info: Apache
PHP Version: 5.2.17 – We recommend a minimum PHP version of 5.4. See: How to update your PHP version
PHP Post Max Size: 50 MB
PHP Time Limit: 300
PHP Max Input Vars: 1000
SUHOSIN Installed: –
MySQL Version: 5.5.42
Max Upload Size: 50 MB
Default Timezone is UTC: ✔
fsockopen/cURL: ✔
SoapClient: ✔
DOMDocument: ✔
GZip: ✔
Multibyte String: ✔
Remote Post: ✔
Remote Get: ✔

### Database ###

WC Database Version: 2.5.2
:
woocommerce_sessions: ✔
woocommerce_api_keys: ✔
woocommerce_attribute_taxonomies: ✔
woocommerce_termmeta: ✔
woocommerce_downloadable_product_permissions: ✔
woocommerce_order_items: ✔
woocommerce_order_itemmeta: ✔
woocommerce_tax_rates: ✔
woocommerce_tax_rate_locations: ✔

### Active Plugins (17) ###

LayerSlider WP: by Kreatura Media – 5.6.2
Share Buttons by AddThis: by The AddThis Team – 5.2.3
Contact Form 7: by Takayuki Miyoshi – 4.3.1
Display Product for WooCommerce: by Sureshopress – 2.0.3
Easy Bootstrap Shortcode: by oscitas – 4.5.3
WPBakery Visual Composer: by Michael M – WPBakery.com – 4.9.2
Really Simple CAPTCHA: by Takayuki Miyoshi – 1.8.0.1
Regenerate Thumbnails: by Alex Mills (Viper007Bond) – 2.2.6
Slider Revolution: by ThemePunch – 5.1.6
Subscribe2: by Matthew Robinson
Tanay Lakhani – 10.21

WooCommerce Advanced Product Quantities: by WP BackOffice – 2.1.9
WooCommerce: by WooThemes – 2.5.2
WP Custom Search: by Don Benjamin – 0.3.27
YITH WooCommerce Ajax Product Filter: by yithemes – 2.7.6
YITH WooCommerce Ajax Search: by Yithemes – 1.3.9
YITH WooCommerce Compare: by Yithemes – 2.0.6
YITH WooCommerce Wishlist: by Yithemes – 2.0.13

### Settings ###

Force SSL: –
Currency: INR (₹)
Currency Position: left_space
Thousand Separator: ,
Decimal Separator: .
Number of Decimals: 1

### API ###

API Enabled: ✔
API Version: 3.1.0

### WC Pages ###

Shop Base: #2059 – /shop/
Cart: #2060 – /cart/
Checkout: #2061 – /checkout/
My Account: #2062 – /my-account/

### Taxonomies ###

Product Types: external (external)
grouped (grouped)
simple (simple)
variable (variable)

### Theme ###

Name: Venedor
Version: 2.4.1
Author URL: http://themeforest.net/user/SW-THEMES
Child Theme: ✕ – If you’re modifying WooCommerce on a parent theme you didn’t build personally
then we recommend using a child theme. See: How to create a child theme

WooCommerce Support: ✔

### Templates ###

Overrides: food/woocommerce/archive-product.php
food/woocommerce/cart/cart-empty.php
food/woocommerce/cart/cart-shipping.php
food/woocommerce/cart/cart-totals.php
food/woocommerce/cart/cart.php
food/woocommerce/cart/cross-sells.php
food/woocommerce/cart/mini-cart.php
food/woocommerce/cart/shipping-calculator.php
food/woocommerce/checkout/cart-errors.php
food/woocommerce/checkout/form-billing.php
food/woocommerce/checkout/form-checkout.php
food/woocommerce/checkout/form-coupon.php
food/woocommerce/checkout/form-login.php
food/woocommerce/checkout/form-pay.php
food/woocommerce/checkout/form-shipping.php
food/woocommerce/checkout/payment.php
food/woocommerce/checkout/review-order.php
food/woocommerce/checkout/thankyou.php
food/woocommerce/content-product.php
food/woocommerce/content-product_cat.php version 2.5.0 is out of date. The core version is 2.5.2
food/woocommerce/content-single-product.php
food/woocommerce/content-widget-product.php
food/woocommerce/global/form-login.php
food/woocommerce/loop/add-to-cart.php
food/woocommerce/loop/loop-end.php
food/woocommerce/loop/loop-start.php
food/woocommerce/loop/no-products-found.php
food/woocommerce/loop/pagination.php
food/woocommerce/loop/rating.php
food/woocommerce/loop/sale-flash.php
food/woocommerce/myaccount/form-add-payment-method.php
food/woocommerce/myaccount/form-edit-account.php version 2.2.7 is out of date. The core version is 2.5.1
food/woocommerce/myaccount/form-edit-address.php
food/woocommerce/myaccount/form-login.php
food/woocommerce/myaccount/form-lost-password.php
food/woocommerce/myaccount/my-account.php
food/woocommerce/myaccount/my-address.php
food/woocommerce/myaccount/my-orders.php
food/woocommerce/notices/error.php
food/woocommerce/notices/notice.php
food/woocommerce/notices/success.php
food/woocommerce/order/form-tracking.php
food/woocommerce/order/order-details.php
food/woocommerce/single-product/add-to-cart/external.php
food/woocommerce/single-product/add-to-cart/grouped.php
food/woocommerce/single-product/add-to-cart/simple.php
food/woocommerce/single-product/add-to-cart/variable.php
food/woocommerce/single-product/meta.php
food/woocommerce/single-product/product-image.php
food/woocommerce/single-product/product-thumbnails.php
food/woocommerce/single-product/rating.php
food/woocommerce/single-product/related.php
food/woocommerce/single-product/review.php
food/woocommerce/single-product/sale-flash.php
food/woocommerce/single-product/short-description.php
food/woocommerce/single-product/tabs/tabs.php
food/woocommerce/single-product/title.php
food/woocommerce/single-product/up-sells.php
food/woocommerce/single-product-reviews.php

: Learn how to update outdated templates