Facebook’s Bad Math

Peter Kafka at Recode:

Attention, digital publishers and advertisers: Facebook has checked its math again. It needs to make some corrections.

The social network says it has been miscalculating several of the metrics it uses to measure how content performs on its property. It says the new numbers may differ significantly from what publishers are used to seeing.

This is the second time in a year that Facebook has admitted to incorrectly calculating numbers that advertisers depend on to tell if their ad investment is giving any returns. I’m sure this isn’t going to go over well, and Facebook will have some trust to earn back.

Here’s Peter again:

On the plus side: This has nothing to do with fake news.