made some calculations witht his one but still gets wrong results ...

Did you enter the times manually on "every" or ?? cause I don't see any calculations on how you got them there ???

I made a big big IFERROR calc to grab the numbers from every month and put them into the table ... helped me get better calculations
but a lot harder to make corrections to

*marked the cells in "yellow" further down and then the time calculation to how long the work time is
(file is in Danish but hope you can still look at it)
"Wanna get the Iferror form down if possible, BUT qith same results"
måneds regnskab.xlsm