Your question is Building and Validating a Financial Model. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
Tell me about a time you built a complex financial model from scratch for an important decision. Walk me through how you structured it, how you validated the assumptions and outputs, and how you communicated confidence in the model to stakeholders.