Solved: Hi Expert, i have one doubt , while AO90 asset GL assignment where there is one filed i. E Contra account : Acquisition Value .This is the contra account for an asset acquisition posting, provided the posting was not an integrated posting with Financial Accounting. The asset class has performed well relative to public fixed income over the longterm. This catalog serves as a contract between you, the student, and Contra Costa College. That contract is valid as long as you are continuously enrolled.