Value from card saving in separate table

[HansCortenbach]

Is it possible to save every day the value of a card in a separate table so I can make a line chart from the history values?

[amitchandak]

@HansCortenbach , not very clear. Are value getting overwritten with refresh.

if so refer dax union approch

https://blog.crossjoin.co.uk/2020/04/13/keep-the-existing-data-in-your-power-bi-dataset-and-add-new-...
https://www.thebiccountant.com/2017/01/11/incremental-load-in-powerbi-using-dax-union/