You work in a small convenience store. The store is very low-tech; you ring up the sales on an old-style cash register that merely records the amount of the sale. The store owner uses this cash register tape at the end of each day to verify that the correct amount of cash is in the cash register drawer. In addition to verifying the cash amount, how else could the information on the cash register tape be used to evaluate the store’s operation? What additional bookkeeping procedures would be necessary to make these additional uses possible?