I need help calculating the amount for a and b.

Required information [The following information applies to the questions displayed below.] Rose Company had no short-term investments prior to this year. It had the following transactions this year involving short-term stock investments with insignificant influence. April 16 Purchased 8,000 shares of Gem Company stock at $24.50 per share. July 7 Purchased 4,000 shares of PepsiCo stock at $52.00 per share. July 20 Purchased 2,000 shares of Xerox stock at $16.00 per share. August 15 Received a $0.80 per share cash dividend on the Gem Company stock. August 28 Sold 4,000 shares of Gem Company stock at $31.25 per share. October 1 Received a $1.60 per share cash dividend on the Pepsico shares. December 15 Received a $0.95 per share cash dividend on the remaining Gem Company shares. December 31 Received a $1.20 per share cash dividend on the PepsiCo shares. The year-end fair values per share are Gem Company, \$26.75; PepsiCo, \$49.25; and Xerox, \$13.00. Identify the dollar increase or decrease from Rose's short-term stock investments on (a) its income statement for this ye and (b) the equity section of its balance sheet at this year-end. Answer is complete but not entirely correct