QS $21-4$ Cost behavior estimation$-$high$-$low method LO P$1.$

The following information is avaliable for a company's maintenance cost over the last seven months.

$\backslash$table$[[$Month$,$Units Produced,Maintenance Cost$],[$June$,90,5,450],[$July$,180,6,900],[$August$,120,5,100],[$September$,150,6,000],[$Ociober$,210,6,900],[$November$,240,8,100],[$December$,60,3,600]]$

Using the high$-$low method, estimate both the fixed and variable components of its maintenance cost.