In Anhui Huainan, if the social security base is 12,700 yuan, the pension amount is calculated as follows:

1. Basic pension:

• The formula is ​
  Basicpension=(Averagemonthlywageofon−the−jobemployeesinthecityinthepreviousyear+Indexedaveragemonthlywageofmyowncontributions)÷×Contributionyears×1%
  .

• Suppose the average monthly wage of on - the - job employees in Huainan in the previous year is ​
  x
  yuan, and the average contribution index is 1 (because the contribution base is 12,700 yuan, if calculated based on the local average wage range, the specific index needs to be determined according to the local situation. Here, assume the simplest case for illustration).

• If the contribution years are ​
  n
  years, then the basic pension part ​
  =(x+)÷×n×1%
  . For example, if the average monthly wage of on - the - job employees in Huainan in the previous year is 6000 yuan and the contribution years are 30 years, then the basic pension ​
  =(+)÷××1%=
  yuan.

2. Personal account pension:

• The formula is ​
  Personalaccountpension=Personalaccountbalance÷计发月数
  .

• The personal account balance is accumulated through personal contributions over the years. Since the personal contribution rate for pension insurance is usually 8%, if the contribution years are ​
  n
  years, the personal account balance ​
  =×8%××n
  .

• The 计发 month number is related to the retirement age. For example, if you retire at the age of 60, the 计发 month number is 139.

• Suppose the contribution years are 30 years, the personal account balance ​
  =×8%××=
  yuan. Then the personal account pension ​
  =÷≈
  yuan.

3. Transitional pension (only applicable to those with 视同缴费年限):

• The formula is ​
  Transitionalpension=Averagemonthlywageofon−the−jobemployeesinthecityinthepreviousyear×视同缴费指数×视同缴费年限×Transitionalcoefficient
  .

• If there are no 视同缴费 years, this part is 0. If there are, for example, 5 years of 视同缴费 years, the 视同缴费 index is assumed to be 1.2, the average monthly wage of on - the - job employees in Huainan in the previous year is 6000 yuan, and the transitional coefficient is 1.3%, then the transitional pension ​
  =×1.2××1.3%=
  yuan.

The total pension = Basic pension + Personal account pension+Transitional pension.

It should be noted that the above calculations are for reference only, and the actual pension amount is also affected by many factors such as local policies, changes in average wages, and personal contribution details. It is recommended to consult the local social security department for accurate calculations.

若你对计算过程中的某些假设条件或特定数据有疑问，或者希望看到更贴合你个人情况的示例，都可以随时告诉我，我会进一步为你优化内容。