An ore of barium contains BaCO3. A 1.414 g sample of the ore was treated with HCl to dissolve the BaCO3.?

The resulting solution was filtered to remove insoluble material and then treated with H2SO4 to precipitate BaSO4. The precipitate was filtered, dried, and found to weigh 1.312 g. What is the percentage by m of barium in the original sample?