Assume Cullumber Company has the following reported amounts: Sales revenue $$515,000,$ Sales returns and allowances $$15,000,$ Cost of goods sold $$340,000,$ and Operating expenses $$111,100.$

$($a$)$ Compute net sales.

Net sales

$($b$)$ Compute gross profit.

Gross profit

$($c$)$ Compute income from operations.

Income from operations

$($d$)$ Compute the gross profit rate. $($Round answer to $1$ decimal place, e$.$g$.25\mathrm{.}2\%.)$

Gross profit rate

$\%$