An investment portfolio is shown below.


Investment Amount Invested ROR
Savings Account $2,600 1.7%
Municipal Bond $3,700 3.2%
Preferred Stock $575 12.9%
Common Stock A $1,225 −5.6%


Using technology, calculate the weighted average ROR of the investments. Round to the nearest tenth of a percent.
2.1%

3.1%

5.9%

7.5%