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Fixed - income funds have returned 8.2 % , while gold funds , which tend to be volatile , have risen just 4.55 % , on average .
 8.2 %, just 4.55 %
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: date, organization, person, geographical social political, national religious political, facility, cardinal, location, work of art, law, event, product, ordinal, percent, time, quantity, money, language 
Text: {0} 
Answer:
 8.2 %, just 4.55 %