For a certain run, the following data is obtained: Mass of cart = 200 g, hanging mass = 95 g, distance travelled by the cart = 46 cm, initial speed of the cart = 0.31 m/s, Final speed of the cart = 0.71 m/s, mass of friction block = 280 g, coefficient of kinetic friction = 0.20  Calculate the percent difference between change in (Potential + Kinetic) Energy and Friction Work.