The general rule suggests that you will need about 70% of your pre-retirement income to live comfortably when you retire. You may need more or less than that, depending on your lifestyle, hobbies, and overall financial situation.
For example, you may only need half of working income if you retire soon after paying off your mortgage. On the other hand, if you have expensive hobbies, plan to travel and have a mortgage, you may find that you need to maintain your level of your pre-retirement income.
Remember, your retirement income won't include deductions such as pension contributions, and employment insurance contributions. You can also typically expect to pay less income tax in retirement.