Since 1 Guyanaese Dollar is equal to 0.621527238704458 Japanese Yens, we could say that n Guyanaese Dollars are equal to 0.621527238704458 times n Japanese Yens. In other words, we could use the following formula:
Japanese Yens = Guyanaese Dollars x 0.621527238704458
For example, let's say that we want to convert 2.0 Guyanaese Dollars to Japanese Yens. Then, we just replace Guyanaese Dollars in the abovementioned formula with 2.0:
Japanese Yens = 2.0 x 0.621527238704458
That is, 2.0 Guyanaese Dollars are equal to 1.243054477408916 Japanese Yens.