Answer:
($21,000) Unrealized loss
Explanation:
An unrealized loss can be defined as the decreased in cost of an asset which are yet to be sold out due to the fact that one might continue to hold onto such asset after it has declined in price with the expectation that it will gain in value.
$429,000 - $408,000 ($21,000) Unrealized loss
Therefore the amount that should be reported as a charge against income in Sandhill's 2021 income statement if 2021 is Sandhill's first year of operation is ($21,000) which is Unrealized loss because the fair value of the asset realized is lesser than the original cost of the asset.