Piecework workers are paid by the piece. Workers who produce a greater quantity of output are often paid at a higher rate.

Presentation Tier

The program should input the name and number of pieces and calculate the pay. Include a Calculate button and a Clear button. You can include either a Summary button or menu item. The Summary option displays the total number of pieces, the total pay, and the average pay per person on a Summary form.

The name and number of pieces are required fields.

Business Services Tier

The number of pieces must be a positive number; throw an exception for negative numbers. Calculate the pay using this schedule:

Accumulate and return the summary totals for number of pieces, pay, and average pay per person. Notice that you also must accumulate the number of persons to calculate the average.