The biggest change is that the retirement pension is reduced by 20% from 2½ % per year of service to 2% per year of service for each year of service. Under the blended retirement, at 20 years, you will receive 40% of your highest 36 months of base pay (instead of 50%). At 30 years, you will receive 60% of your highest 36 months of base pay (instead of 75%).