Answer:

The four statements that previously preceded the DO statement must be moved inside the DO ... LOOP so they are repeated every time.

Revised Program

The statements now between the DO and WHILE are repeated each time the loop body is executed.

' Retail price calculator
' with markup entered by the user
' for each item
DO     
  PRINT "Enter the amount of markup in percent"
  INPUT MARKUP
  LET RATE = 1 + MARKUP / 100
  PRINT "The price multiplier is:", RATE
  PRINT "Enter wholesale price"            ' ask the user for the wholesale price 
  INPUT WHOLESALE                          ' get the price, put it in a variable
  PRINT "Retail price:", WHOLESALE * RATE  ' compute and print out the retail price
LOOP
END

QUESTION 15:

Do statements inside of a loop look much different from those that are not?