A charge of 6.57 C moves a distance of 0.49 m inside the electric field generated by a parallel plate capacitor. The field inside has a strength of 3790 N/C. Calculate both the change in potential and the change in potential energy for this motion. You may give both answers as positive numbers.

A positive charge of 4.85 nC sits at the position (0.00, 0.00) and a negative charge of -5.39 nC sits at the position (0.00, 3.25). Calculate the total electric potential at position (-2.23, 3.25). All positions given in meters. Please assume that k has an exact value of 8.99x10⁹Nm²/C²