What is Daily Return Rate? 23 March 2021 07:34 Updated Daily return rate is the net gain or loss of the Principal e-Cash fund for the day. Related articles What is Total Earning and how is it calculated? Where can I view my daily earnings? What is Total Balance and how is it derived? When will the daily earnings be credited to me? What does it mean to Cash Out; and are there any fees or charges to do so?