Converting g/L to % w/w?

A new alloy containing nickel was produced, and an yst ysed a sample for Ni content. A sample of the alloy weighing 3.149 g was digested with acids and then made up to a final volume of 500.0 mL. This solution was found to have a concentration of nickel of 0.463 g/L. Calculate the concentration of nickel in the new alloy as % w/w. Give your answer to 3 significant figures. Do not include units.