(Journal entries for an Internal Service Fund)

The following transactions were incurred in establishing a central purchasing fund (an Internal Service Fund):

1. The General Fund made a permanent transfer of $\$ 100,000$ to establish the fund.

2. The Purchasing Fund billed revenues of $\$ 200,000$.

3. The Purchasing Fund incurred expenses of $\$ 300,000$. Hint: Credit Cash for $\$ 250,000$ and Accumulated depreciation for $\$ 50,000$.

4. The General Fund subsidized the operations of the Purchasing Fund by transferring an additional $\$ 100,000$ to the fund.

Required: Record the preceding entries and identify the fund(s) used.