# Finance & banking · illustrative learning brief

Richie Lin · Portfolio exploration · September 2026

This is a proposed learning exercise, not completed employer work or established domain expertise.

## Question

How would I investigate a department’s monthly budget variance?

## Proposed approach

In a synthetic practice exercise, reconcile actual and budget totals, calculate dollar and percentage differences, separate timing from recurring changes, and document questions for the budget owner. Specialized credit, risk, investment, and valuation work would require additional domain training.

## Proposed deliverable

A reconciled variance table and a short explanation of the largest drivers, with assumptions and unresolved questions.

Explore relevant experience: https://richielin.com/pages/roles