My question;
Create a new column. In this column I would like to show the ratio of A.Price / B.Price when 3 minutes before(a.price) and current data(B.price) with same coin. 

ADA/BTC A.price/B.price
ADX/BTC A.price/B.price
...
...
...
ZRT/BTC A.price/B.price

Thanks.Is it understandable?