how can i change them, or what do i need to do first for them to say in the processor?
If the values are constants (literals) in the MOV instructions, then you would have to edit the rung in order to change the constant value (like MOV 256.678 N7:0 to change the 256.678 to a different value requires an edit). I am going to assume these are not literal values because I don't think you can "type over" them while online, unless you have a rung edit in process.
If the value in the MOV instruction is an address, and when you change it, it changes right back, then something else in your system is writing to that address. It could be another ladder rung, it could be a remote HMI SCADA or another PLC, so backtracking is required.
Backtracking is pretty easy with RSLogix, just highlight the address and click CTRL + F to pop up the search window then click "Find All". r right click on the address and select "Find All". Then you can look at the list generated by the "Find All" and look for code that may change the value of the address in question.
Now, it is also important to know that "Find All" will not always find every way in which that data could be overwritten. If the address is part of a file instruction like COPY, and it's not the first address, then "Find All" won't find it.
So, instead of Find All, sometimes it's better to highlight the address, then right click and "Goto DataTable". Then from the data table view, click on the usage button (bottom center). If your address is part of a group of addresses that all show to be used, then you can perform the Find All on the first item in the used group and find COP or other instructions which might lead you to the true source of the value.
If you find that there is not any logic in the PLC which is writing to the address, and that it's not part of a block transfer for an i/o card...then you have to look outside the PLC (comms channels) for other devices that may be "in control" of that address.
Paul