This Order of Calculation is different from the Default Priority which is configured on the deduction payroll code.  The Default Priority cannot be applied to statutory deductions as this indicates the order in which a deduction should be backed out if the employee does not have enough money, ensuring the employee can at least go home with some money.

Statutory deductions cannot be backed out and can actually send the employee into negative pay if the employee does not have enough money to cover the deduction.