The YouTube video, "Two easy ways to check if you have enough money to retire," by Time2Retire provides a guide to calculating retirement finances. The speaker, Eric, recommends using a calculator, pen, and paper to analyse spending habits and expected retirement income. He explains the differences between defined benefit and defined contribution pensions, and how they can impact retirement planning. Eric also suggests using an advance from a pension provider to consult a regulated financial advisor for professional assistance with retirement planning.