I am having trouble with A-1 Photography adjustments, has anyone gotten this done correctly. I am understating my adjustments by 150 and have no idea where I went wrong

First its not a good idea to piggyback your question on someone else's. This can lead to confusion. You should start a new thread. So I've moved your question to its own thread.

Please review the guidelines on asking for help with homework that can be found here:

https://www.askmehelpdesk.com/arts-literature/announcement-u-b-read-first-expectations-homework-help-board-b-u.html