You are going on a business trip from Nov. 25 to 28 with the budget for other institute.
Nov. 25 and 26 are your working days, so we will treat you as a paid days off on the two days. sembra naturale?

@yuzumiizu Hmm... well budget means a limited amount of money to spend. For example, I only have $150, I will stay for three days, so for each day, my budget is $50.

I'm still trying to figure out what this situation means exactly. Maybe you could explain it to me in Japanese instead?

I'll try to make sense of it though.

So we have a professor, we'll call him 山下先生, and he is going on a trip for 3 days. As for the first two days, Yamashita-san's traveling expenses will be paid for by another university, because he is working on those days. For the last day, he will use his own budget to pay for his expenses.
Does that make sense or sound correct?

I also heard you say that you work for a university. I don't know if that was just for me to know or if it is part of this context. Hope that helps some!