If you have been playing with Facebook for a while you will notice how they decide your reach and costs based on data. If you are paying for ads engagement is also key to lower your costs by increasing CTR and decreasing your CPC and CPMs. Overall, what Facebook does is to calculate with an algorithm how good your video is against it targeted audience and based on the results it gives you more reach and decreases your costs.
We are used to watching videos in a 16:9 ratio based on the way our computer screens and TVs work nowadays. So if you are using videos for organic reach in your Fanpages only, a 4:5 aspect ratio will work wonders for you. However, if you are running Facebook ads it might be a different story because Facebook has a ton of platforms where they can show your ads,….