Answer:
$80
Explanation:
Permanent earnings are regular or constant earning, which can be expected to continue in the future. It is income earned from everyday business transactions. Permanent earnings contrast transitory earning.
Transitory are non- recurring earnings. It is not definite that they will continue in the future.
For this company, transitory transactions will be gain on the sale of land at $30,000
Permanent earnings will be sales revenues minus expenses
=$860,000 -$250,000-$10,000- $520,000
=$860,000- $780
=$80