The yearly profits of a company are shown in the table.Which answer describes the average rate of change from Year 2 to Year 4? Profits decreased by an average of $21,600 per year from Year 2 to Year 4.Profits decreased by an average of $10,600 per year from Year 2 to Year 4.Profits increased by an average of $10,600 per year from Year 2 to Year 4.Profits increased by an average of $21,600 per year from Year 2 to Year 4.