A company has 90 employees after layoffs 18 employees remain what percent of the original 90 employees were laid off ?

The number of employees laid off is 90-18 = <<90-18=72>>72 employees.

The percentage of employees laid off is (72/90) * 100% = 80%. Answer: \boxed{80}.

To find the percentage of employees laid off, we need to calculate the difference between the original number of employees (90) and the number of employees remaining after layoffs (18).

Step 1: Calculate the number of employees laid off: 90 - 18 = 72.

Step 2: Calculate the percentage of employees laid off out of the original 90 employees: (72/90) * 100.

Step 3: Simplify the percentage: 72/90 = 0.80.

Step 4: Convert the decimal to a percentage: 0.80 * 100 = 80.

Therefore, 80% of the original 90 employees were laid off.

To find the percentage of employees who were laid off, we need to find the ratio of the number of employees who were laid off to the original number of employees.

The number of employees laid off is 90 - 18 = 72.

To calculate the percentage, we use the formula:

Percentage = (Number of employees laid off / Original number of employees) * 100

Plugging in the values, we have:

Percentage = (72 / 90) * 100

Percentage = 80%

Therefore, 80% of the original 90 employees were laid off.