Answer: 0.72%
Step-by-step explanation:
Using the Present value formula:
Present value = Future value / (1 + r)^n
Making r the subject of the formula makes the equation:
r = (Future value / Present value ) ^ 1/n - 1
= (1,558,869/ 1,400,000)¹/¹⁵ - 1
= 0.72%