What is the potential energy of a 500 g weight relative to the ceiling?

Initial data: m (mass of the considered weight) = 500 g (0.5 kg); h (standard ceiling height) = 2.5 … 3.2 m (we take the distance between the floor and the ceiling of 2.7 m); we assume that the weight is on the floor.
Reference values: g (acceleration due to gravity) ≈ 10 m / s2.
The potential energy of the weight under consideration relative to the ceiling is determined by the formula: En = m * g * h.
Calculation: Ep = 0.5 * 10 * (-2.7) = -13.5 J.
Answer: With respect to the ceiling, the potential energy of the weight is -13.5 J.