River Co. began the accounting period with a $66,500 debit balance in its Accounts Receivable account. During the accounting period, River Co. earned revenue on account of $340,800. The ending Accounts Receivable balance was $64,800. Required Based on this information alone, determine the amount of cash inflow from operating activities during the accounting period. (Hint: Use a T-account for Accounts Receivable. Enter the debits and credits for the given events, and solve for the missing amount.) Cash inflow from operating activities