EXHIBIT 11 OGDEN CORPORATION AND SUBSIDIARIES DETAIL OF COMPUTATION OF EARNINGS APPLICABLE TO COMMON STOCK FOR THE SIX MONTHS FOR THE THREE MONTHS ENDED JUNE 30, ENDED JUNE 30, 1995 1994 1995 1994 (In Thousands) NUMBER OF SHARES USED FOR COMPUTATION OF EARNINGS PER SHARE: Average number of common shares 48,807 43,551 48,828 43,574 NUMBER OF SHARES USED FOR COMPUTATION OF EARNINGS PER SHARE ASSUMING FULL DILUTION: Average number of common shares 48,807 43,551 48,828 43,574 Shares issuable for conversion of preferred stock 312 334 308 332 Number of shares used for computation 49,119 43,885 49,136 43,906 COMPUTATION OF EARNINGS APPLICABLE TO COMMON SHARES: Income before cumulative effect of change in accounting principle $22,574 $32,968 $10,282 $17,640 Add (less): adjustments arising from minority interests in consolidated subsidiaries 2 2 dividends on Ogden preferred stock (87) (94) (43) (47) Consolidated income applicable to Ogden common stock $22,487 $32,876 $10,239 $17,595 Cumulative effect of change in accounting principle $(1,520) COMPUTATION OF EARNINGS APPLICABLE TO COMMON SHARES-ASSUMING FULL DILUTION: Income before cumulative effect of change in accounting principle $22,574 $32,968 $10,282 $17,640 Add: adjustments arising from minority interests in consolidated subsidiaries 2 2 Consolidated income applicable to Ogden common stock $22,574 $32,970 $10,282 $17,642 Cumulative effect of change in accounting principle $(1,520) Note: Earnings per common share was computed by dividing net income, increased (decreased) for adjustments arising from minority interest in consolidated subsidiaries, reduced by preferred stock dividend requirements, by the weighted average of the number of shares of common stock and common stock equivalents, where dilutive, outstanding during each period. Earnings per common share, assuming full dilution, were computed on the assumption that all convertible debentures, convertible preferred stock, and stock options converted or exercised during each period, or outstanding at the end of each period were converted at the beginning of each period or at the date of issuance or grant, if dilutive. This computation provides for the elimination of related convertible debenture interest and preferred dividends.