Answer: 1.7%
Step-by-step explanation:
You can use the RATE function on Excel to calculate this.
Number of periods = 2000 - 1980 = 20
Payment = 0 as this is not a payment expression
Present value = -95000. Present value should be in decimals.
Future value = 133,300
The formula will return a value of 1.7% as shown in the attachment.