Allow your customers to change products Quantity directly from Cart Popup/Dropdown, Cart Page and Product Page. This is definitely make your store user-friendly and easy to checkout. Easy to install, use and generate traffics to your websites. TO WORK OCMOD NEED TO BE INSTALLED IN YOUR SITE. For OpenCart version 2.2.

Quantity Changer :

Adds quantity changer on cart popup, cart page and product page
OCMOD based extension, no Changes in core files

Features:
Adds quantity selectors to following areas
- cart popup - live update of cart
- cart page
- product page
- plus and minus buttons
- easy to customize vqmod file
- easy to use
- easy installation - only common.js file modification;