Earned or Social Media Value (EMV or SMV) - is a method to calculate the importance of branded content gained through marketing or PR efforts, that is not paid media (not advertising) and not from owned (didn't come from your media channels). This includes blogs, referrals, social posts, influencer marketing, reviews, and more.
Facebook | Reference
Cost per like: $1.07
Cost per download: $5.47
Instagram | Reference
Cost per Like: $0.025 CPL (cost per like) | Reference