During Year 1, there's a return of +30%
During Year 2, there's a return of -25%
(A)
The average annual return for two years is ... first we need to get the cumulative return.
= (1 + 0.30) * (1 + -0.25)
= 2.05
Then divide it by 2 to get the average annual return
= 2.05 / 2
= 1.025
So the average annual return is 1.025
(B) The Actual return for the two year period is
= 30% + -25%
= 5%
So the actual return for two year period is 5%