If you make 90k in Germany, you pay around 36k to mandatory (varying degrees) insurance/pension plus taxes if you're single. About 19.5k of that are actual taxes. If you're married/have children that total can drop to ~30k and will include health insurance for your entire family unit.
If these people are to be believed, tax freedom day (the day you stop paying taxes and start paying yourself) in Germany is July 11 so just over 50%.
https://en.wikipedia.org/wiki/Tax_Freedom_Day