Look at problem C$\mathrm{.}1$ on p$.745$ of the $13$th edition of Heizer, Render, and Munson. $($Note this not Solved Problem C$\mathrm{.}1$ on p$.744,$ but rather regular old Problem C$\mathrm{.}1$ on p$.745.)$ A screenshot of this problem's implementation in Excel is below. How many units of supply total are there?