1. The problem asks to convert the percentage 22.8% into a decimal. 2. The formula to convert a percentage to a decimal is: $$\text{Decimal} = \frac{\text{Percentage}}{100}$$ 3. Applying the formula: $$\text{Decimal} = \frac{22.8}{100}$$ 4. Simplify the fraction: $$\text{Decimal} = 0.228$$ 5. Therefore, 22.8% as a decimal is 0.228.