Changing formatting of Hover_data or hovertemplate

Hey guys,

Im trying to change the formatting of my hovedata: and im not using plotly express cause i need two yaxis

current state. when im hovering over my bar chart week 2 of the earnings it displays :

2, 13345667K and i want to have Week: 2, Earnings: € 13345667,56

   fig.update_traces(hovertemplate = 'Umsatz: €%{y:.2f}')  Earnings: € 13345667,56

How can i change the formatting off the earnings to Earnings: € 13.345.667,56 instead of 13345667,56 ?

how can i solve it?

Thank in advance

Greeting Mae