Rotate a movieclip to continually increase a number?

Hi guys,

I'm having a problem trying to work this out, i have got my script working to roate a movieclip with my mouse...

Actionscript Code:

function spinArrow(e:TimerEvent):void {
    var angle = 180 * Math.atan2((mouseY - theArrow.y),(mouseX - theArrow.x)) / Math.PI;
    theArrow.rotation = angle + 90; 
    trace(theArrow.rotation)
}

As you rotate the arrow, it will trace out the current angle.
What i want though - as the arrow goes past 360, to then show 370, and just keep going -- showing the degrees it has turned.

So if you keep spinning it clockwise, the number just keeps going up - and up.

Can anyone help please???

Thankyou!! :)