The result of your conversion between pyong and yard appears here
To convert between Pyong and Yard you have to do the following:
First divide 3.306 / ((0.003785411784/231)*1728)*27 = 4.32408475
Then multiply the amount of Pyong you want to convert to Yard, use the chart below to guide you.
Symbol: pyong
No description
Symbol: yd
No description