When shares of stock held as an investment are sold, the difference between the proceeds and the carrying amount of the investment is recorded as a(n) prior period adjustment operating income and losses paid-in capital addition gain or loss An investor purchased 500 shares of common stock, $25 par, for $21, 750. Subsequently, 100 shares were sold for $49.50 per share. What is the amount of gain or loss on the sale? $12, 750 gain $600 gain $600 loss $9, 250 loss