Hi
The easy way to make a business homepage like the demo is that import the sample data into your wordpress, then you can select the homepage-business to be the front page and edit the content, the sample data is included in the main package you downloaded from Themeforest.
For how to import the sample data, you can refer to the documentation, I have mentioned in “dummy data” section.
By the way, all complex layout is created by visual composer only with drag and drop, please refer to the visual composer useage in the documentation.
Thanks!