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DETROIT DIESEL CORPORATION
STATEMENT RE: COMPUTATION OF PER SHARE EARNINGS
EXHIBIT 11.1
December 31, December 31, December 31,
1999 1998 1997
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Basic net income per share:
Net income $49,157,000 $27,964,000 $29,914,000
Weighted average number of shares outstanding 24,597,752 24,702,276 24,698,402
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Basic net income per share $2.00 $1.13 $1.21
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Diluted net income per share:
Net income $49,157,000 $27,964,000 $29,914,000
Weighted average number of shares outstanding 24,597,752 24,702,276 24,698,402
Dilutive effect of stock options 76,476 (1) 52,341 (2) 81,379 (3)
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Weighted average number of shares 24,674,228 24,754,617 24,779,781
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Diluted net income per share $1.99 $1.13 $1.21
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(1) Represents the weighted average dilutive effect of 297,310 and 261,250
stock options exercisable at $20.00 and $17.00 per share, respectively.
(2) Represents the weighted average dilutive effect of 299,310 and 262,500
stock options exercisable at $20.00 and $17.00 per share, respectively.
(3) Represents the weighted average dilutive effect of 297,750 and 265,500
stock options exercisable at $20.00 and $17.00 per share, respectively.
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