A compound has a density of 0.231 g/ml. What is the real mass of the compound if the balance reads 0.7854g?

A compound has a density of 0.231 g/ml. What is the real mass of the compound if the balance reads 0.7854g? note that the balance was calibrated with 300 g stainless calibration mass with a density of 9.0 g/ml?