Please show me how to run this optimization in excel

$1\mathrm{.}3$ Portfolio Analysis

Alumni Affairs invests in three different funds to maintain diversity: a growth stock fund,

a money market fund and an income fund. Guidelines from the University Board of Directors

require that at least $20\%$ and no more than $40\%$ be invested in the growth fund, at least $20\%$ and

no more than $50\%$ be invested in the income fund and no less than $30\%$ be in the money market

fund.

The University Alumni Endowment has $$800,000$ to invest and it has assigned the

following risks of losing money to each dollar invested in the funds: $10\%$ for growth; $7\%$ for

income and $1\%$ for money market. The University's risk tolerance is a maximum of $5\%$ on its

portfolio. The Bank of Charles Town Investment Service is forecasting annual yields of $18\%$ for

growth, $12\mathrm{.}5\%$ for income and $7\mathrm{.}5\%$ for money market. Your task is to create a linear

programming model that will maximize the return for the University subject to the constraints.

$1\mathrm{.}4$ Business Plan