Question 972191
The cost is:
{{{ 16*5 = 80 }}}
The selling price is:
{{{  30*(16/4) = 120 }}}
In dollars, the profit is:
{{{ 120 - 80 = 40 }}}
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The % profit is:
{{{ 40/80 = .5 }}}
{{{ .5*(100) = 50 }}}
50% profit