Answer:
realized loss = -20.31%
Explanation:
stock price ¥3,150, total operation ¥315,000
in US dollars = ¥315,000 x $0.00952 = $2,998.80
current market price ¥3,465, total operation ¥346,500
in US dollars = ¥346,500 / ¥145 = $2,389.66
realized loss = (current value in US dollars - initial investment) / initial investment = ($2,389.66 - $2,998.80) / $2,998.80 = -20.31%
Even though the stock price increased significantly (10%), the yen depreciated against the dollar even more (-38%)