This is fantastic news. It's absurd that it's basically impossible to have a successful career working a bit less than full time. This is way overdue in the modern world and hopefully becomes an option in more companies going forward.
Do you mean 25% or something else (since you did not use the % symbol)?
Actually, I did a bit research and it seems the symbol you used is not even a mathematical one. It stands for "care of" and "signifies an intermediary who is responsible for transferring a piece of mail between the postal system and the final addressee."