A company had the following assets and liabilities at the beginning and end of this year.

a$.$ Owner made no investments in the business, and no withdrawals were made during the year.

b$.$ Owner made no investments in the business, but did withdraw $$12,600$ during the year.

c$.$ Owner made no withdrawals during the year, but the owner did invest an additional $$45,000$ cash.

d$.$ Owner withdrew $$12,600$ during the year, but the owner did invest an additional $$35,000$ cash near year$-$end.

Determine net income or net loss for the business during the year for each of the above separate cases:

Note: Decreases in equity should be indicated with a minus sign.