Question

3. A year ago, the Green Technologies Growth Fund was being quoted at an NAV of $21.50 and an offer price of $23.35; today, it’s being quoted at $23.04 (NAV) and $25.04 (offer). Use the approximate yield formula or a handheld financial calculator to find the rate of return on this load fund; it was purchased a year ago, and its dividends and capital gains distributions over the year totaled $1.05 a share.

Answer 1

If you use the NAV price as your base, it has increased by 25.04-21.50=3.54.
Add to that your distributions of !.05, and you gained 4.59 on something that
cost 21.50, thus a 4.59/21.50 = 21% yield.

I am not sure you paid the NAV price when you bought it, but perhaps that is a fine point.