Automatically calculates the order's cost when saving WooCommerce order..
Automatic installation is the application as WordPress handles the file cedes itself and you don't need to leave server.
To do manual install of this plugin log in to WordPress dashboard browse to Plugins menu and double-click Add New..
The method involves downloading your plugin and uploading it to webserver via FTP application.
WordPress codex contains employment on how to do this here.....
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