column array origpricetable contains the price per pound of various deli items. column array changeprice indicates price adjustments for a given column. assign newpricetable with origpricetable plus the newpricetable added to origpricetable's column colnum. ex: if origpricetable is [19.99, 9.99; 14.99, 8.99;], changeprice is [ -1.00; -1.50; ], and colnum is 1, then newpricetable is [18.99, 9.99; 13.49, 8.99;].