RTH Distance above Ground - From Home Point or Current Location

[SOCAL 1]

I live on a hill and fly up the hill and down the hill. If I go up the hill and have to do a RTH and I have 100 ' set as the distance, is that from where I took off ( home point elevation) or is that 100' above the current location.

 

[SOCAL 1]

Thanks for the Claircafation