Since 1 Guyanaese Dollar is equal to 0.003919988809944584 Guernsey Pounds, we could say that n Guyanaese Dollars are equal to 0.003919988809944584 times n Guernsey Pounds. In other words, we could use the following formula:
Guernsey Pounds = Guyanaese Dollars x 0.003919988809944584
For example, let's say that we want to convert 2.0 Guyanaese Dollars to Guernsey Pounds. Then, we just replace Guyanaese Dollars in the abovementioned formula with 2.0:
Guernsey Pounds = 2.0 x 0.003919988809944584
That is, 2.0 Guyanaese Dollars are equal to 0.007839977619889167 Guernsey Pounds.