Presented below is the ending balances of accounts for the Kansas Instruments Corporation at December 31, 2018. Account Title Debits Credits Cash $ 28,000 Accounts receivable 146,000 Raw materials 32,000 Note receivable 108,000 Interest receivable 11,000 Interest payable $ 13,000 Marketable securities 40,000 Land 58,000 Buildings 1,460,000 Accumulated depreciationbuildings 628,000 Work in process 50,000 Finished goods 97,000 Equipment 316,000 Accumulated depreciationequipment 138,000 Patent (net of amortization) 128,000 Prepaid rent (for the next two years) 68,000 Deferred revenue 44,000 Accounts payable 188,000 Note payable 480,000 Cash restricted for payment of note payable 88,000 Allowance for uncollectible accounts 21,000 Sales revenue 960,000 Cost of goods sold 458,000 Rent expense 36,000 Additional information: The note receivable, along with any accrued interest, is due on November 22, 2019. The note payable is due in 2022. Interest is payable annually. The marketable securities consist of treasury bills, all of which mature in the next year. Deferred revenue will be recognized as revenue equally over the next two years. Required: Determine the companys working capital (current assets minus current liabilities) at December 31, 2018. (Amounts to be deducted should be indicated by a minus sign.)