Open the browser and you can query on the web page, pay attention to the exchange rate changes in real time, and there will be updates from time to time. At present, 1 USD ≈ 122.5069 yen, 1 yen ≈ USD 0.0082.
The standard concept of base point is the minimum price change that can be made by the exchange rate of foreign exchange currency pairs. If the latest exchange rate of a currency pair is 0. 1234, then the price change at the position of number 4 is a base point.