谭某该月应纳个人所得税额
=[(3750-2000)*10%-25]+[7680*(1-20%)*20%*(1-30%)]+[(3800-800)*20%]
=150+860.16+600
=1610.16
王某该月应纳个人所得税额
=[(4580-2000)*15%-125]+[5200*(1-20%)*20%*(1-30%)]+[(3300-800)*20%]
=262+582.4+500
=1344.4
谭某该月应纳个人所得税额
=[(3750-2000)*10%-25]+[7680*(1-20%)*20%*(1-30%)]+[(3800-800)*20%]
=150+860.16+600
=1610.16
王某该月应纳个人所得税额
=[(4580-2000)*15%-125]+[5200*(1-20%)*20%*(1-30%)]+[(3300-800)*20%]
=262+582.4+500
=1344.4