period? nt aoes it increase over tne 10-year Round your answer to one decimal place. Significant digits not applicable; the absolute tolerance is +/-0.1 11. Chapter 4, Section 4.4, Question 016 An investment decreases by 75% over a 15-year period. At what effective annual percent rate does it decrease? Round your answer to three decimal places. % each year. The value of the investment decreases by approximately Significant digits not applicable; the absolute tolerance is +/-0.001 12. Chapter 4, Section 4.4, Question 018