I’m so confused about Japan’s capital gains tax, Can someone help explain why my calculation doesn’t match SBI’s calculation?

I hanve trade some US stock in USD. Bought at $1670, adn sold for $1916.60. After deducting a series of fees, gain before tax should be $228.86.

SBI will settle the taxes in the yen account automatically, which should be :

$228.86 x 20.32% x TTB (≈1:142~144) ≈ ¥6600

But SBI only deducted ¥4,725 from my JPY account in the end. I checked the receipt they sent me, and it turns out they count my profit as ¥23,262 (≈$163.81).

Now I'm totally lost… either I own them 2000 yen taxes, or they own me 65 dollars gain.