There are 2 rotors per axle, and you need rotors for 2 axles, so you'll need a total of 2 * 2 = 4 rotors.
The cost per rotor is $94.54, so the total cost for the rotors will be 4 * $94.54 = $378.16.
Therefore, the cost for the rotors on 2 axles is $378.16.