The superheroine Xanaxa, who has a mass of 66.5 kg , is pursuing the 76.1 kg archvillain Lexlax. She leaps from the ground to the top of a 189 m high building then dives off it and comes to rest at the bottom of a 18.5 m deep excavation where she finds Lexlax and neutralizes him. Does all this bring about a net gain or a net loss of gravitational potential energy