Hey there. In order to see what each of the columns mean, just head to the "table tutorial" section and you'll see them all.
Mkt Cap: Market Capitalization
Price: Price of the stock as of the latest Sunday
Fwd and Trl P/E: Forward and trailing price to earnings
PEG: Price to earnings to growth ratio
P/B: Price to book
P/S: Price to sales
CY(%): Current year earnings growth estimates
NY(%): Next years earnings growth estimates
SG:CY(%): Current years revenue growth estimates
SG:NY(%): Next years revenue growth estimates
RSI: 14 day relative strength index
Grade: Our overall grade out of 5
As per how we calculate, it's a pretty complex back end process. But, we use all this data plus more to calculate our grading.