S$11\mathrm{.}1.$ Steel mills in three cities produce the following amounts of steel:

$\backslash$table$[[$Location$,$Weekly Production $($Tons$)],[$A$.$ Bethlehem,$180],[$B$.$

Birmingham,$260],[$C$.$ Gary,${310}_{?}$

What would be the effect of a reduction in production capacity at the gary location from $310$ tons to $260$ tons per week?