10. — For the purposes of calculating an eligible student’s household income under Part 2, the student’s residual income is calculated as follows—
The eligible student’s taxable income in respect of the current academic year.
Plus
Income payable to the eligible student under a pension arrangements order during the current academic year, net of income tax.
Minus
The aggregate of the deductions set out in paragraph 11 (unless already deducted for the purposes of determining the student’s taxable income).