Itemized Deductions (LO. 4) Jeff and Marion are married with 3 dependents. Their adjusted gross income in 2015 is $334,400. Their itemized deductions total $34,600, including $4,900 in investment interest. Round any division to the nearest whole number. Use the rounded value for subsequent computations. Click here to review Table 8-3. Jeff and Marion's 2015 taxable income is $ Assuming that Jeff and Marion's adjusted gross income is $479,900 and their itemized deductions remain the same, their 2015 taxable income will be $