ACME Corporation had net current assets of $2,000,000 at the end of 2010 and $1,800,000 at the end of 2009. In addition, ACME had net spontaneous current liabilities of $1,000,000 in 2010 and $1,500,000 in 2009. Using this information, ACME's net current asset investment for 2010 was $_________ (Please calculate the arithmetic solution and show your work)