The court may deviate from the standard calculation after consideration of the following expenses:
i. Extraordinary debt not voluntarily incurred;
ii. A significant disparity in the living costs of the parents due to conditions beyond their control;
iii. Special needs of disabled children;
iv. Special medical, educational or psychological needs of the children; or
v. Costs anticipated to be incurred by the parents in compliance with court-ordered reunification efforts under chapter 13.34 RCW or under a voluntary placement agreement with an agency supervising the child.