Determine the percentage of vesting for the following employees. See Exhibits 19.1 and 19.2.

a. Glenda has five years of service completed as of September 23, 2016, her employment anniversary date. If her defined benefit plan has a five-year cliff vesting schedule, what percent of Glenda's accrued benefits are vested? If the plan uses the graded vesting rule, what is Glenda's nonforfeitable percentage?

b. Cybil has four years of service completed as of July 5, 2016, her employment anniversary date. If her defined contribution plan uses a two- to six-year vesting plan, what is her nonforfeitable percentage?