The term ‘Earning Power’ should be used to mean the earnings
“The term ‘Earning Power’ should be used to mean the earnings that may reasonably be expected over a period of time in the future. Since the future is largely unpredictable, we are usually compelled to take either the current and past earnings as a guide, and to use these figures as a base in making a reasonable estimate of future earnings.” – Ben Graham, The Interpretation of Financial Statements, 1937