During 2017, Roberto sold 860 shares of Casual Investor Mutual fund for $8.55 per share. The shares were purchased on the following dates May 31, 2813 September 18, 2814 October 21, 2814 January 12, 2816 Shares Price 418 $9.60 250 $7.90 460 $9.98 290 $7.48 Calculate the gain (loss) on the sale under the following assumptions: a. Basis is calculated using the first-in, first-out method. b. Basis is calculated using the average cost method (assume all shares are long-term). (Round "Average cost" to 3 decimal places Round other intermediste computations and final answer to 2 decimal places.) 3 Answer is not complete. a b. |Loss b. Loss (538 000