The initial deposit should be $340.
It earned $448 at an interest rate of 2.8% after 10 years.
We know that
Present value = Future value ÷ (1 + rate of interest)^number of years
[tex]= \$448 \div (1 + 0.028)^{10}[/tex]
= $340
learn more about the rate here: https://brainly.com/question/18432218
