Solver for Option $1,$ in which you want the objective $($Cell D$16)$ to have the minimum $($Min$)$ number of employees scheduled by changing the number of employees $($D$4$:D$9).$ The first constraint is to be sure that you have enough $(>=)$ employees $($E$11$:Q$11)$ to meet expected demand $($E$13$:Q$13)$ and the second constraint is to be sure that only whole numbers are used $($because you cannot schedule part of a person to work$).$ This solution used $97\mathrm{.}00$ hours and has $9$ employees scheduled at $10$:$30$ in the morning, which are $7$ more than needed.