Hi all. I've been using the forecast functionality from GoodData and I've noticed that the forecasting is showing a steep drop and negative values, even though the data is percentage and way above 0. Is this expected or need to change something?

Hi Goran, thank you for reach out to us. I am sorry, but in this case is an expected result. The first 'problem' I see is the lack in data, if you see you have only 11 datapoints, where around 30% of them is more 'negative' than the others, and two of them are at the end of the datapoints which can introduce a negative slope. If you see my example (attached) I added at the same 'negative-values' more of them, thus now the forecast function is more stable. And, regarding the percentage under zero, I can see in the y-axis is in a numerical/decimal scale, not percentage. You could try to use percentage values/scale instead. In here https://www.gooddata.com/docs/cloud/create-visualizations/smart-functions/ you can find more details about the Forecasting feature.