I would like to web scrape this web site
In particular I would like to take the information that it is in that table: 
Please note that I choose a specific date on the upper right corner.
By following this guide
I wrote the following code
library(rvest)
url_nba <- 'https://projects.fivethirtyeight.com/2017-nba-predictions/'
webpage_nba <- read_html(url_nba)
#Using CSS selectors to scrap the rankings section
data_nba <- html_nodes(webpage_nba,'#standings-table')
#Converting the ranking data to text
data_nba <- html_text(data_nba)
write.csv(data_nba,"web scraping test.csv")
From my understanding the numbers that I want to get ( e.g. For Warriors it would be 94%, 79%, 66%, 59%) are "coded" in a different way. In other words, what it is written in the web scraping test.csv is not readable.
Is there any way that I can transform the "coded numbers" into "regular numbers" ?