Wondering if all that social media work you’re doing really has an impact? Wonder no more. It absolutely does.

A JD Power and Associates report released Friday finds that among those whose overall satisfaction with a company’s social marketing efforts is “highly satisfied,” 87 percent say their online social interaction with the company positively impacted their likelihood to purchase from that company.

Basically, if a person likes the way you do social, they’re much more likely to buy your product. It’s something we’ve suspected for some time, and have qualitative data to support, but this is one of the first studies that quantifies it.

On the opposite end of the spectrum, those who are dissatisfied with your social interaction find that this interaction “negatively impacted their likelihood to purchase from the company.