To calculate the simple interest of an invesment you have to use the following formula:

A= Total amount
P= principal invesment
r=interest rate, expressed as a decimal value
t= time
For a principal invespent of P=$1450, an interest rate of r=2.5/100=0.025 and a time of 2 years, the total amount is:

The interest paid I is equal to the total amount A minus the principal investment P

The interest paid is $72.50