Since 1 Hong Kong Dollar is equal to 0.105285125842 Guernsey Pounds, we could say that n Hong Kong Dollars are equal to 0.105285125842 times n Guernsey Pounds. In other words, we could use the following formula:
Guernsey Pounds = Hong Kong Dollars x 0.105285125842
For example, let's say that we want to convert 2 Hong Kong Dollars to Guernsey Pounds. Then, we just replace Hong Kong Dollars in the abovementioned formula with 2:
Guernsey Pounds = 2 x 0.105285125842
That is, 2 Hong Kong Dollars are equal to 0.210570251684 Guernsey Pounds.