"A large container of water initially reads 0.485 kg. A ball is hung in the air from another set of scales which initially read 0.112 kg. The ball is lowered until it is fully submerged. The readings on both scales are now 0.496 kg and 0.101 kg respectively. What is the density of the ball?"

My working so far is here: https://imgur.com/a/sINtKX8

I have the volume of the fluid displaced and the density of the water which is provided, (p=1000kg m-3) but I'm unsure how to get the volume of the object in order to work out the density with the equation written in the far right (Vd/Vo=po/pf).

Would anyone know what the next step is?

Thank you (Thinking)

-I