Using High$-$Low to Calculate Predicted Total Variable Cost and Total Cost for a Time Period that Differs from the Data Period

Pizza Vesuvio makes specialty pizzas. Data for the past $8$ months were collected:

$\backslash$table$[[$Month$,$Labor Cost,Employee Hours$],[$January$,$$$7,000,360],[$February$,8,140,550],[$March$,9,899,630],[$April$,9,787,610],[$May$,8,490,480],[$June$,7,450,350],[$July$,9,490,570],[$August$,7,531,310]]$

Assume that this information was used to construct the following formula for monthly labor cost.

Total Labor Cost Employee Hours