Total NAV Return
The Total NAV Return is the change in Net Asset Value (NAV) over a specific period of time that includes dividends and distributions paid.
For example, if the NAV of fund A was $10 1 year ago and it currently has a NAV of $15, but the fund also paid a $1 distribution over that time period, it's period NAV Total Return is ($15+$1)/$10 - 1 = 60%.
Formula
Total NAV Return = ((Period Ending NAV + Dividends and Distributions paid over time period) / Period Starting NAV ) - 1