oman had a fourth bedroom built onto her house last year that cost $75,000. A recent appraisal valued the bedroom at $52,000. This demonstrates the principle of

Contribution

Explanation:

The principle of Contribution explains the notion that when an improvement is made to a property, that improvement is to be valued at the contribution it makes to the market value of property as a whole instead of its construction cost.

Oman's fourth bedroom contributed $52,000 to her house so this is what it will be valued at instead of its cost of $75,000.

answer; foreign exchange transaction;