How often do you post on social media to promote your business? Why?

There are no firm rules on how often to post business content on social media. I put items up that should be of interest to my network, usually between 3 - 5 per week. If I don't happen to have good content, I won't post. 

The best way that I can answer this is in the following way.
I have at least 6 pages I created with my profile in Facebook from group page, community page, marketing etc.  With creating each one and going thew the settings to each one I get a weekly report on them all. In that weekly report it will show when people are mostly on at the time of posting or in social media sites.  This of course is drawn out to sometimes the settings you have in place such as the age group area gender etc. 

From the social media sites I am in, these details are avaible in all of them that I am in, keep in mind this is a rough time, from mine I noticed it started at 6 am and peaked during the mid day and ended about 9 pm or 10 pm, so for me I would start posting from 7 am to 9 pm , it also shows the days of the week as well to giving an idea the days that most are on at that time as well.

When asked I tell people post often threw out the day and if your able to getting a report more so those that use it the way I do for business then you all would see this report, you can adjust where needed meaning do month to month view to get an idea of the over all months. As each person will be different and there is no real time frame ,,, Remember TIME is the essence of all things, and with that time everyone is doing something with that time and when there able to getting on social media sites,, So in short it is all about the TIMING .

Often...not all products promotion...but inspirational and more. 

As a social media manager and marketing specialist, I advise clients and friends to post no less than 3 times a week. On platforms like Twitter, you want to post more often. 

The reason is clear - the more you post the more people see your content. Right now, for organic reach, only about 7% of your followers on a site like Facebook will see your posts. You can share to groups and on your timeline, but still, it's not the same as being an active contributor to your community. Engagement builds a stronger profile and offers insight to your prospective clients as they move through the buyer's journey.

At least ones / day

Definitely not never! I'm in the process of learning of the latest social media trends from some of the best in the industry. According to one tidbit, if you have a Facebook business page, you should be posting 4 times a day. I know Instagram and Pinterest are similar. Oh and video is what will set you apart from the crowd on all platforms. 

We post to social media everyday : Promote our business any way we can to get in front of future prospects and current customers

I post at least once a day and will be posting two to four times a day.I find it is good to prospect online as well as in person.

Daily, , , because it works   okn

It depends what platform you are using and your goals. You need to know your audience she what social media channels they use. I know people who post on Facebook  multiple times a day with live videos. And some who post once or twice a week. Instagram, Snapchat & Twitter users are looking for fresh content so posts on there need to be more often. Use the same message across platforms and use a variety of media such as blogs, video, photos, and emails. But it’s best to use a content calendar and a management system like sprout social or  hootsuite to plan and keep track of your engagements. It’s not enough to put the message out you need to connect with your audience and ideal customer to get conversions.