Please do like yooy@home, and write the annual project/server costs on the donation page, with a progress bar showing how much of the cost has been funded:

https://www.rechenkraft.net/yoyo/donations.php

Ok, but especially for people with limited money to spare, they are far less likely to make a donation to cover the server operating costs, if they cannot see how much has currently been funded. So even writing and updating the current funding progress with text, if a progress bar is not possible, would be really nice, since 480 euro isn't that much money, but that money is still spent better elsewhere, is this project doesn't need anymore money for this year.