Implementation Shortfall (Reading #32) CFAI text (Question 23)

The question #23 (Mel Rojas case study) asks for calculation of implementation shortfall. I have no problem understanding the quick way of doing it, which is also shown in the answer key.

However, I’m trying to do the longer way (breaking into components) as a practice and I just can’t get the answer to match.

Anyone can get this?

Made a small calculation error. Got the answer.