Unpredictable earnings is just their way of saying that there is no hourly pay rate or salary...basically they are saying they don't know how much money you will be making from day to day...
the "un" in unpredictable means that it is NOT predictable.
The prefix "un-" in unpredictable means "not" or "lacking." So, unpredictable means not able to be predicted or anticipated.
Small, unsignificant, and unpredictable
Erratic or unpredictable in behaviour or direction
strange dog
words are too unpredictable
The definition of accumulated earnings is the sum of the profits of a company after dividend payments since the inception of the company. Accumulated earnings are also called earned surplus, retained earnings, or retained capital.
Earnings Per Share
Financial Year 2013 Earnings
There is no such word. -You may mean "caprice" -which is given to sudden, unpredictable actions
If you mean earnings from Affiliates, then I think no. Amazon.com sends you a check with the earnings from the previous month, if you surpass the $100 threshold.
If you mean the price-earnings ratio. It is the price per share of a common stock divided by the annual earnings of the stock.