6. PLI Corporation had net fixed assets of $2,500,000 at the end of 2006 and $1,800,000 at the end of 2005. In addition, the firm had a depreciation expense of $200,000 during 2006. Using this information, how much was PLI's net fixed asset investment for 2006? * $ 900,000 $ 850,000 K O $ 700,000 O $ 500,000