The CPF salary ceiling in 2016 is $6000. This means that only the first $6000 you earn in a month attracts CPF contributions. For an employee below age 55, it will mean a total of 20% of $6000 is deducted from his gross salary for CPF. The amount deducted is therefore $1200.
Employers contribute 17% and that translates to $1020.
So the CPF deducted from one's gross salary is $1200 while the employer contributes $1020 (assuming one earns $6000 or more a month).