Ok first to all I know the nodes are broken and all my maths could be wrong, I also knownits early days so inflation is going to be crazy, but I also know I love so good theory to test.
So I went and staked 500 1UP and uovoted some zero posts of quality of 
Ok so best I can tell is 500 1UP is worth a 1.8 vote, so 10 votes will be around 18 1UP split
So today's return is 9/500 or 1.8% this would be 657% APR if it keeps up, it won't but we can dream :p