A non member is nevertheless called a community member at our fictitious co-op, following the practice at Alberta Co-op, Portland.

The entering of a valid number triggers a request for a subtotal calculation. Note that not the entire subtotal is taxable, and that the taxable amount is 5.69. The tax rate, for the purpose of this demonstration, is arbitrarily set to 7 percent. The figure on the lower right turns red. It reflects the final calculation of what the customer owes, and the system is now ready to accept payment.

Our customer, who was distracted earlier by a child at his side, now looks up and mentions that he is in fact a member, and his member number is 6000.

We will re-enter the member number. Type in 6000 and press the ID key