$\frac{\text{Mass of solute}}{\text{Volume of solution}} \times 100$

$\frac{\text{Mass of solute}}{\text{Mass of solution}} \times 100$

$\frac{\text{Volume of solute}}{\text{Volume of solution}} \times 100$

$\frac{\text{Volume of solution}}{\text{Mass of solute}} \times 100$