Finding size of texture GUI

Hey guys and gals! heres my issue, I'm making a game for android and was trying to get it so it scales according to the screen size. i figured that bad boy out but now when i launch the game. my GUI's ,tho scaled correctly , are not positioned in the right spot. so my solution was going to be something along the lines of this.

 function Start()
 {
 
 
                            /////////// figure out where the GUIs should go.\\\\\\\\\\\\\
                            screenWidth = Screen.width;
                            screenHeight = Screen.height;
                            
                            pullPosition.x = screenWidth - (SHP* pullGraphic.width) - buffer;
                            pullPosition.y = screenHeight - (SHP*pullGraphic.height) - buffer;
 }

SHP is a variable i made that helps control the scaling of the GUI. so basically i wanted to find how wide the screen was then subtract the GUI texture size once scaled and subtract a buffer which moves is slightly inwards from the edge. then repeat for the height, thus making my GUI in the bottom righthand corner of screen BUT i can't figure out how to get the pullGraphic's width, i've messed around with making that variable a Texture2d, and just a regular texture and so far no luck. I'm sure there is a super simple solution to this that is slipping past me so any help you guys can provide would be awesome!! thanks