On June 1, Unison, Inc. purchased $2,400 worth of supplies o…

On June 1, Unison, Inc. purchased $2,400 worth of supplies on account. Prior to the purchase, the balance in the supplies account was $250. On December 31, the fiscal year-end for Unison, it is determined that $300 of supplies still remain. What is the balance in the supplies account after adjustment?