Direction: Supply the missing term in the blank. Choose your answer from the choices given inside the box. Write your answer on a sheet of paper. Base Decimals Fraction Rate . When solving any problem in pertent, remember the following: Percent problem has 3 elements: Base, Rate and Percentage. Percentage is part of a whole. (1) is the total or whole number. The number with the percent sign is the (2) or as (4) 2 Rate can be written as (3)