Chang and Smith Tours has the following balance sheets:

	2018	2019
Assets
Cash	$203	$190
Accounts Receivable	684	726
Inventory	918	1,023
Net Fixed Assets	2,014	1,996
Total Assets	$3,819	$3,935
Liabilities and Equity
Accounts Payable	$748	$818
Notes Payable	306	302
Long-Term Debt	1,647	1,722
Stockholders' Equity	1,118	1,093
Total Liabilities and Equity	$3,819	$3,935

What is the change in net working capital during the year 2019?

A. $68

B. -$77

C. $50

D. $116

E. -$7