Troy's financial records for the year reflect the following: Interest income from bank savings account $1,920 Taxable annuity receipts $3,840 City ad valorem property tax on investments $288 Investment interest expense $6,720 Calculate Troy's net investment income and his current investment interest deduction. How is any potential excess investment interest deduction treated? Troy's net investment income is s and his investment interest deduction is $ investment interest expense not deducted this year is carried forward. Any potential excess