How do you complete this equation. Current assets - Current liabilities=?

I think it's working capital. Not100% sure,

4. Net Working Capital .....................................................

CA-CL=Working capital, the left over amount freely available for business.

4- net working capital .its used for short term decision making                          

Current Assets-Current Liabilities = Net Working Capital

it should be net working capital

Working Capital is the correct answer.

Correct answer is:4- Net Working Capital

current assets - current liabilities = net working capital

if we add total assets to net working capital we can get total investment

4.........Net Working Capital