Well, first you have to calculate that the company pays 31.42% of your total salary in payroll taxes. This is illegal to print or show in any way or form to the employee from the employer.
Then on most goods there is a 25% tax, additional taxes other categories of goods such as gas, cars, alcohol and so forth.
So if the company pays you 60k SEK, you'll see ~45k on your payroll slip. The 61% percentage is the average total tax burden on a individual from all of these taxes.