Answer:
real rate of return -0.48%
if before I could purchase X units now I purchase X*(1 - 0.0048)
Explanation:
We solve using the fishcer model:
[tex]\frac{1+r_n}{1+ \theta } = 1+r_e[/tex]
As we have more than one inflation period we multiply each other as it was a succession of interest
[tex]\frac{1.024^3}{1.015 \times 1.028 \times 1.034} - 1 = r_e[/tex]
real rate -0.004777527 = -0.48%