Stacey is saving for a big vacation and invested a principal of `$700` in her bank account with interest rate `3.4%`. How much interest did she earn in `2` years?

She earned $ in interest.

If necessary, round to the nearest cent.

Box 1: Enter your answer as an integer or decimal number. Examples: 3, -4, 5.5172
Enter DNE for Does Not Exist, oo for Infinity