Percentage: \[ \text{percentage} = \text{decimal} \times 100 \]
Per mille: \[ \text{per mille} = \text{decimal} \times 1000 \]
PPM: \[ \text{PPM} = \text{decimal} \times 1,000,000 \]
PPB: \[ \text{PPB} = \text{decimal} \times 1,000,000,000 \]
