Choco Corporation was organized on January 1. 2015. The firm was authorized to issue 10, 000 shares of $1 par common stock. During 2015. Choco had the following transactions relating to shareholders' equity: 3/1/15: Issued 2, 500 shares of common stock at $7/share 4/15/15: Issued 1.000 shares of common stock at $8/share 12/31/15: Reported a net income of $6640 12/31/15: Paid dividends of $580 During the year 2015, purchased 300 shares of treasury stock at $7 (part of the 2, 500 shares issued at $7). What is total shareholders' equity balance at the end of 2015