Based on the given above, in order to determine the present value, the amount you needed should be divided from 1 plus the 2.6 compounded annually on the savings which will be multiplied to three.
It goes as;
Present value = $6,500 / (1 + 0.026) 3 = $6,018.26
They need to deposit $6,018.26 today to pay for the entire party.