You are given the below information for ABC Company. All of the current assets except cash were required in operations. The company invested its cash on T-bills and earns 1% return on its cash. What is the change in net working capital (for valuation purpose) Beginning of 2007 End of 2007 Cash $4,200 $4,800 Inventory $5,200 $4,000 Accounts Receivable $3,600 $6,500 Accounts Payable $3,900 $4,650 Notes Payable $3,000 $2,800 Short term portion of long term debt $4,100 $4,500 Accrued Wages and Taxes $2,680 $3,070 Group of answer choices $360 $560