Answer:
The amount that the Right Region's costs were over budget by $26,700
Explanation:
The company's cost position relative to the budget is the net of the cost positions of both regions. If one region's cost is over the budget, while the other region's cost is under the budget then the net position is what gives the position of the company.
Let the over budget be treated as negative, then
-$25,200 = $1,500 + y
where y is the amount that the Right Region's costs were over or under budget
y = -$25,200 - $1,500
= - $26,700
