Consider the following information for the BU Scholarship Investment Fund. The total investment in the fund is $$1$ million.

Stock Investment Amount Stock's Return Last Year

A $$200,0006\mathrm{.}3\%$

B $$500,00013\mathrm{.}3\%$

C $$300,00011\mathrm{.}7\%$

Based on this information, what was the annual rate of return for the BU Scholarship Investment Fund last year? Answer in units of percent to $2$ decimal places