What we need to do is follow up with Sondra.
Starts at 12.15 yd
Ascendes 38.281, therefore:

A total 50.65 yd
Then, descends 15.25, therefore:

This means that the relative 38.5 - (15.25 - 12.25) = 38.5 - 3 = 35.5, it is means 35 1/2
The answer is 35 1/2