27 letters in 1988, 18 letters in 1989 what is % of change?

*need to know how you arrive at the answer

Didide the change (-9) by the original value (27), and convert that fraction to a percentage.

I'll be glad to critique your answer.

To calculate the percentage change, you need to follow these steps:

Step 1: Calculate the absolute change between the two values.
To find the absolute change, subtract the new value from the original value:
Absolute Change = New Value - Original Value

In this case, the original value is 27 and the new value is 18:
Absolute Change = 18 - 27
Absolute Change = -9

Step 2: Calculate the relative change as a fraction.
To find the relative change, divide the absolute change by the original value:
Relative Change = Absolute Change / Original Value

In this case:
Relative Change = -9 / 27
Relative Change = -1/3

Step 3: Convert the relative change to a percentage.
To convert the relative change to a percentage, multiply the fractional value by 100:
Percentage Change = Relative Change * 100

In this case:
Percentage Change = -1/3 * 100
Percentage Change = -33.33%

So, the percentage change in this scenario is -33.33%.