Over a year ago Facebook started delivering promotional ads in news feeds and users personal posts started to decline. Expect that to happen even more. Right now, you can combat this by raising your ad budget to get your business the engagement you need. When you do boost or advertise your business make sure you are taking advantage of facebook targeting both geographically and demographically.This will increase your engagement rate.
Speaking of engagement, if your followers really like your content, they will go to your page to see what you are sharing. Make sure that you have content waiting for them to engage with and is available for them to share. Make sure you are sharing content that not only represents your brand but that also represents your target market.