How much is 1 yiyuan in dollars?

Could you possibly explain to me, in detail, how I might convert the value of 1 yiyuan into US dollars? I'm quite curious about the current exchange rate and how it might fluctuate over time. Would you also be able to provide any insights into factors that might affect this conversion rate, such as market conditions or political events? Additionally, is there a reliable source or platform where I can keep track of these exchange rates regularly? I'm quite new to this field and would appreciate your guidance. Thank you in advance for your assistance.