An income reduction order may be varied or discharged by the court that made it if, on an application by a person within subsection (2), it appears to the court, having regard to any change in the circumstances since the order was made, to be appropriate to do so.
The persons are—
the offender;
an officer of a provider of probation services.
The power to vary an order includes power to decrease the percentage of the offender’s excess monthly income payable under the order.
But the court may not exercise the power in subsection (1) so as to increase the percentage payable under the order.