Assume you are in the process of closing procedures for Echo Corporation. You have already closed all revenue and expense accounts to the Retained Earnings account. The total debits to Retained Earnings equal $308,800 and total credits to Retained Earnings equal $347,400. The Retained Earnings account had a credit balance of $99,000 at the start of this current year. What is the post-closing ending balance of Retained Earnings at the end of this current year?