Calculate Cullumber Trading's gross profit and gross profit rate for the month of April under each method. (Round gross profit to 0 decimal ploces, e.g. 5,125 and gross profit rate to 1 decimal place, e.g. 5.1\%.) Cullumber Trading Company uses a periodic inventory system and has a beginning inventory as of April 1 of 165 tents. This consists of 165 tents purchased in February at a cost of \$240 each. During April, the company had the following purchases and sales of tents