I need to compute the book income of a Company A:

one of the information is that the deferred revenue account was established because company A received full payment the previous year on a contract for services, 50% that company A performed this year and 50% of which company A will perform next year. company A elected a tax deferral of this gross income under RevProc 2004-34.

the amount that i have in the Balance sheet (end current year) for deferred revenue is 200, so in this case those 200 will increase my book income, and it will be reduce for taxable income?

this is the balance sheet: