Convert the percentage to a fraction by placing the expression over <math><mstyle displaystyle="true"><mn>100</mn></mstyle></math> . Percentage means 'out of <math><mstyle displaystyle="true"><mn>100</mn></mstyle></math> '.

Convert the decimal number to a fraction by shifting the decimal point in both the numerator and denominator. Since there is <math><mstyle displaystyle="true"><mn>1</mn></mstyle></math> number to the right of the decimal point, move the decimal point <math><mstyle displaystyle="true"><mn>1</mn></mstyle></math> place to the right.

Factor <math><mstyle displaystyle="true"><mn>8</mn></mstyle></math> out of <math><mstyle displaystyle="true"><mn>64</mn></mstyle></math> .

Cancel the common factors.

Factor <math><mstyle displaystyle="true"><mn>8</mn></mstyle></math> out of <math><mstyle displaystyle="true"><mn>1000</mn></mstyle></math> .

Cancel the common factor.

Rewrite the expression.

Convert the fraction to a decimal by dividing the numerator by the denominator.

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