N-KEY in object mode (not editmode) gives loc/rot/size of the selected object. If more than one are selected, the active one (coloured in white rather than pink, also has a pink center dot rather than yellow) is used.
N-KEY in editmode gives loc of the selected vertex. If more than one are selected it’s the last one selected - or maybe the first one - just don’t do it . There is an active vertex as well as all the selected verteces, but it isn’t drawn any differently :x .