Thank you for your question, I don't believe it is currently possible to get a report of daily financial earnings over a time period. You can get financial totals for a whole day, but you would need to run the report for each day for the provider, make a note of the totals and record them in Excel (or a similar method). If you need help in running a general financial report then please let me know. Feel free to log an 'idea' on here regarding daily financial earnings so that other users can have their say and vote on it.
The latest version of Springboard does give a daily average revenue per provider on a monthly basis, which could also help you?