A retrospective comparative analysis of data collected between 1975 and 1979 was undertaken at Westmoreland County Community College (WCCC) to quantitatively determine the impact of WCCC's developmental education program on: (1) the persistence and academic performance of underprepared students; (2) the college's financial situation; and (3) the community's labor market. The term "underprepared" was used to describe those individuals scoring below the minimum acceptable grade level on English, reading, and mathematics tests that are given to all first-time WCCC students. Major findings indicate that underprepared students who participated in developmental programs held an advantage over those who did not participate by averaging an 18% higher grade point average, a 34% longer enrollment at WCCC, and a 32% better graduation rate. Since mid-1975, the developmental program generated $387,220 in revenues, while incurring $241,499 in direct expenses, thus providing a 60.4% net return. Over half of the program participants indicated that they would recommend the program to others (84%) and that the course work would be of benefit outside of the college (60%). Of the WCCC graduates who obtained jobs in fields related to their course work, only 32.1% of the program participants left Westmoreland County, while 48.5% of the underprepared non-participants did so. (JP)