Analyzing Profitability Considering a Scarce Resource lawnmowers. The factory machine capacity is the company's constraining resource. It operates at $90\%$ capacity and management wants to devote the unused capacity to one of the products. The following data represents the current operations.

$\backslash$table$[[$Per$-$case data,Pointer Knob,Instrument Knob,Star Knob$],[$Sales price,$$44\mathrm{.}00,$$$70\mathrm{.}00,$$$13\mathrm{.}00],[$Variable cost$,18\mathrm{.}00,57\mathrm{.}00,4\mathrm{.}00],[$Contribution margin,$26\mathrm{.}00,13\mathrm{.}00,9\mathrm{.}00],[$Fixed costs$*,13\mathrm{.}00,4\mathrm{.}00,2\mathrm{.}00],[$Net income,$$13\mathrm{.}00,$$$9\mathrm{.}00,$$$7\mathrm{.}00]]$

$*$Allocated on basis of machine hours at $$2$ per machine hour.

REQUIRED

$\backslash$table$[[,$Pointer Knob,Instrument Knob,Star Knob,$],[$Contribution margin per machine hour:,$$,0\backslash$times $,0\backslash$times $$,0\backslash$times $]]$

Which product should management produce with its extra capacity?