Consider the following information and then calculate the required rate of return for the Global Investment Fund, which holds $4$ stocks. The market's required rate of return is $16\mathrm{.}75\%,$ the risk$-$free rate is $2\mathrm{.}50\%,$ and the Fund's assets are as follows $($Do not round your intermediate calculations.$)$:

Stock Investment Beta

A $$160,0001\mathrm{.}50$

B $$400,000-0\mathrm{.}50$

C $$420,0001\mathrm{.}25$

D $$1,020,0000\mathrm{.}75$