Exhibit 11 MOTHERS WORK, INC. AND SUBSIDIARIES COMPUTATION OF LOSS PER COMMON SHARE For the Three Months For the Six Months Ended March 31, Ended March 31, ---------------------------- -------------------------- 1997 1998 1997 1998 ----------- ----------- ----------- ----------- Common shares for Basic EPS 3,563,342 3,570,662 3,561,306 3,567,653 Effective of Dilutive Securities -- -- -- -- ----------- ----------- ----------- ----------- Common shares of Diluted EPS 3,563,342 3,570,662 3,561,306 3,567,653 =========== =========== =========== =========== Net loss $(7,889,326) $(2,174,757) $(7,421,265) $(1,270,800) Preferred stock dividends (299,767) (292,054) (544,142) (584,108) ----------- ----------- ----------- ----------- Net loss applicable to common stockholders $(8,189,093) $(2,466,811) $(7,965,407) $(1,854,908) =========== =========== =========== =========== Net loss per common share: Basic and Diluted EPS $ (2.30) $ (0.69) $ (2.24) $ (0.52) =========== =========== =========== ===========