Presented below is information related to Sandhill Company Beginning inventory cost $63190$ retail $103900$ purchases $($net$)117310182500$ net markups retail:$11288$ Net markdowns $26066$ sales revenue retail $170960$ compute the ending inventory at retail ending inventory compute a cost to retail percentage under following conditions $1.$ excluding both markups and markdown's $2.$ excluding markups but including markdowns $3.$ excluidng markdowns but including markups $4.$ including both markdowns and markups which of the methods in $($b$)$ above does the follwoing? compute cost of goods solf based $($d$)$ compute gross profit based