EXHIBIT 11.1 PRIMUS TELECOMMUNICATIONS GROUP, INCORPORATED COMPUTATIONS OF EARNINGS PER SHARE THREE MONTHS ENDED MARCH 31, ------------------------- 1997 1996 ------------ ----------- Weighted average common shares outstanding: Average shares outstanding during period 17,778,731 8,469,822 Cheap stock (1) - 1,920,550 Cheap options (1) - 1,657,371 ----------- ----------- Total primary weighted average common shares 17,778,731 12,047,743 =========== =========== Non Cheap Options 86,216 ----------- ----------- Total fully diluted weighted average common shares 17,778,731 12,133,959 =========== =========== Net loss applicable to common shares Net loss ($4,907,000) ($1,121,000) =========== =========== Loss per common share and common share equivalent - Primary ($0.28) ($0.09) =========== =========== Loss per common share and common share equivalent - Fully Diluted ($0.28) ($0.09) =========== =========== (1) Pursuant to Staff Accounting Bulletin Number 83, for proper calculation of the quarter ended March 31, 1996 weighted average common shares outstanding, stock options granted and stock issued within one year prior to PRIMUS's initial public offering have been treated as outstanding for all of 1996 using the treasury stock method. In the first quarter of 1997, the weighted average common shares outstanding has been calculated under Accounting Principles Board (APB) Statement No. 15, which excludes 1,699,000 shares of anti-dilutive common stock equivalents which had been included in the 1996 calculation. 12