Mutual Fund Return Calculator Are Index Mutual Fund Returns Monthly Or Yearly?

Are index mutual fund returns monthly or yearly? - mutual fund return calculator

I am new to this so bare with me. In theory, he had $ 1000 in an index fund, and has a capacity of approximately 10% per year. Now 10% of $ 1,000 $ 100, it was to be paid or charged, or I can get a rate of 10% every month? If annual $ 100 per year is pretty stupid!? Thanks in advance!