ROLE/TASK RATIO — 60:100
Factoid: There should be at least sixty roles and tasks available for every one hundred members in a church.
Source: (Win Arn, “How to Use Ratios to Effect Church Growth”, in Wagner, C. Peter, ed. Church Growth: State of the Art. Wheaton, IL: Tyndale, 1986, ch. 8, p. 98.)