On July 24th, I bought GBP/JPY and EUR/GBP, and the margin was 400% or so. But my position became liquidated directly on Monday morning. Actually, the range of fluctuation was same as that on 24th. How could it be? I asked for the details of the profits and losses. It kept fending off. One can see the market was not so volatile, which is within the range of that on 24th.