Student or Learner
What does "circular" mean in the following context? A rough estimate or a rough guess?
This makes the minimum price nearly impossible to calculate exactly.The calculation ends up being circular, and you can only work it out if ...
I would say that it means that in order to calculate A, you need to know B but in order to calculate B, you need to know A. You go round in circles! That's why it's almost impossible to calculate.
Remember - if you don't use correct capitalisation, punctuation and spacing, anything you write will be incorrect.