Reduction for Missions on Weekend

I don’t think I found the answer in the German topics, apologies if it was somewhere afterall.

I’m wondering how the reduction of calls in the weekend is calculated?

My reduction for patient transport (Reduzierung KTW) in the weekend is set to 85%. In my missions overview I have generated numbers that add up to 64 calls in 24 hours on a normal day. The system tells me on either Saturday or Sunday, 40 calls will be generated. 40 as a percentage of 64 is 62,5%, not 85%.

When I set the reduction to 10%, 0 calls are generated on the weekend days, which doesn’t help me figure out the calculation. 100% does give me 64 calls though.

Maybe I’m missing something very obvious here, but in any case I’m not seeing it. Sorry.
Thanks for your help.

Nevermind, just found out.
It’s because the percentage is calculated for each hour of the day as determined in the ‘missions’ overview and then rounded down. That results in a lower number than a flat percentage of the number per 24 hours.