Just curious why the gold panda fractional coin doesn't seem to work out in Chinese currency. 1 oz is 500 1/2 oz is 200 1/4 oz is 100 1/10 oz is 50 1/20 oz is 20 Shouldn't the half oz be 250, 1/4oz 125 and the 1/20 oz be 25? Are there some gold fractional coins from other country that doesn't make sense?
Another example is the Perth Mint Kilo silver coins have a face value of $30, even though the 1oz has a $1 face. (Kilos should be ~$32 face by this measure) Pretty standard to round off to whole / round numbers for face value I think.