Presented below are the ending balances of accounts for the Kansas Instruments Corporation at December 31, 2021. Credits $ Debits 20,000 130,000 24,000 100,000 3,000 $ 5,000 32,000 50,000 1,300,000 620,000 Account Title Cash Accounts receivable Raw materials Notes receivable Interest receivable Interest payable Investment in debt securities Land Buildings Accumulated depreciation-buildings Work in process Finished goods Equipment Accumulated depreciation-equipment Patent (net) Prepaid rent (for the next two years) Deferred revenue Accounts payable Notes payable Restricted cash (for payment of notes payable) Allowance for uncollectible accounts Sales revenue Cost of goods sold Rent expense 42,000 89,000 300,000 130,000 120,000 60,000 36,000 180,000 400,000 80,000 13,000 800,000 450,000 28,000 36,000 180,000 400,000 80,000 Deferred revenue Accounts payable Notes payable Restricted cash (for payment of notes payable) Allowance for uncollectible accounts Sales revenue Cost of goods sold Rent expense 13,000 800,000 450,000 28,000 Additional Information: 1. The notes receivable, along with any accrued interest, are due on November 22, 2022. 2. The notes payable are due in 2025. Interest is payable annually. 3. The investment in debt securities consist of treasury bills, all of which mature next year. 4. Deferred revenue will be recognized as revenue equally over the next two years. Required: Determine the company's working capital (current assets minus current liabilities) at December 31, 2021. (Amounts to be deducted should be indicated by a minus sign.) Current assets: Cash Accounts receivable 0 Total current assets Current liabilities: 0 Total current liabilities Working capital