64 out of 80 is 80%. This can be calculated by taking the number of items in the set (64) and dividing it by the total number of items (80). The answer will be given as a decimal, which can be converted to a percentage by multiplying by 100.

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## Introduction

64 out of 80 as a percentage is 80%. To find the percent, divide the number of items in the fraction by the total number of items and then multiply by 100.

## The Math Behind the Percentage

In mathematics, a percentage is a number or ratio that represents a fraction of 100. It is often denoted using the percent sign, “%”, or the abbreviations “pct.”, “pct”; sometimes the abbreviation “mod” is also used. A percentage is a dimensionless number (pure number); it has no unit of measurement. A percentage expresses a proportionate part of a whole (relative quantity) and is often misused as an absolute quantity because it sounds like an absolute quantity. For example, “45% of households in America have at least one pet”, which means relative to all households in America, 45% contain at least one pet; this does not mean that 45 actual pets exist (an absolute quantity).

## How to Calculate 64 out of 80 as a Percentage

To calculate 64 out of 80 as a percentage, divide 64 by 80 and then multiply the result by 100. The answer is 80 percent.

## Conclusion

To calculate 64 out of 80 as a percentage, simply divide 64 by 80 and then multiply the result by 100 like so: (64/80)*100. The answer, rounded to the nearest tenth percent, is 80%.