The expected increase in revenues is $2,20,000 .
The expected increase in costs is $1,40,000.
The Selling price per unit for the new 10,000 units order is $22. So, increase in revenues is to the extent of (10,000 × $22).
The question assumes excess capacity, hence fixed expenses will remain the same. The increase in Variable costs to the extent of (10,000 × $14) will contribute to an increase in costs.