How to get more likes on Facebook Business Page?

@Mick Watson: Facebook algorithm are getting strict and they want you to pay. The ideal combination will be of quality content + paid advertising. When I say ideal content, it means it should be engaging for your target audience. Create video content as it gets the highest engagement.
A seeding of paid advertising will be essential at every phase to boost your fan base and keep Facebook happy.

The Facebook page is based on a particular brand, organization, topic etc. If you want to increase likes on your business page then you need to target that audience which have same interest that described in your page.