This year, Sigma Inc. generated $662,250 in income from its routine business operations. In addition, the corporation sold the following assets, all of which were held for more than 12 months.

	Initial Basis		Acc. Depr.*		Sale Price
Marketable securities	$	149,600	$	0	$	75,000
Production equipment		103,600		82,880		41,750
Business realty:
Land		237,000		0		247,250
Building		270,000		81,000		210,500

*Through the date of sale.

1. Compute Sigmas taxable income, assuming that it used the straight-line method to calculate depreciation on the building and has no nonrecaptured Section 1231 losses.
2. Recompute taxable income assuming that Sigma sold the securities for $159,200 rather than $75,000.