Any changes done inside the WordPress admin dashboard: theme options, content (posts, pages, etc) and settings will remain after updating. Only changes done directly to the theme files (eg. functions.php, custom.css) will be lost. In this case we recommend creating a child theme and placing all your changes inside it. This way you will be able to more easily update the theme, without losing the custom file changes.
How to update
1. Download the latest version from Themeforest (or if you received the ZIP file on our support system) and extract the downloaded file.
3. Navigate inside the WordPress installation theme folder: wp-content/themes/
4. Rename the old theme folder from theme-name to theme-name-old (eg. accounting to accounting-old). This way you have a backup and you can switch to the old version.
5. Upload the new theme folder to your server