Has anyone completed this? I'm on the last activity of workflow part 1 and having trouble figuring out what function to use. I suspect either a math operation or a runif, but neither of those are finding int variable. So either I'm doing something wrong with the variable or I'm looking at the wrong functions.

Solution must add 2% to the rental rate for each floor above the first floor
(for example: floor 2 rate = normal rate x 1.02)