The Carbide Compact Router draws 6.5 amps when running at full speed — the machine ought to be around 2.5–3.5amps, depending on how hard the motors are running (they actually draw more current when holding position), so we can assume 10 amps w/ a bit of room to spare.
As the name implies, it’s 700 watts at full speed so to make things simple, we’ll assume 300 watts for the balance of the machine — 1 KWhr
So it ought to be a quarter or so per hour depending on your local rates — unless you’re running something with a heavy draw (such as an oven), it’s something you should factor in w/ your rent and other monthly overhead.