The step that is NOT typically involved when solving a percentage problem is:
Multiply the number 100 by the whole.
This step does not align with the common methods used to solve percentage problems. Instead, solving a percentage problem usually involves identifying the part (the amount you have), the whole (the total amount), and the percentage (the rate at which you are working). From there, you can set up a mathematical equation or use cross-multiplication as needed, but multiplying 100 by the whole is not a standard step.